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  • Function returning pointer to struct

    - by GammaGuy
    I am having some issues with code that is returning a pointer to a struct declared inside a class. Here is my code so far: SortedList.h #ifndef SORTEDLIST_H #define SORTEDLIST_H class SortedList{ public: SortedList(); ... private: struct Listnode { Student *student; Listnode *next; }; static Listnode *copyList (Listnode *L); }; #endif SortedList.cpp #include "SortedList.h" ... // Here is where the problem lies Listnode SortedList::*copyList(Listnode *L) { return 0; // for NULL } Apparently, the copy list method wont compile. I am using Microsoft Visual Studio and the compiler tells me that "Listnode" is unidentified. When I try to compile, here is whhat I get: 1>------ Build started: Project: Program3, Configuration: Debug Win32 ------ 1> SortedList.cpp 1>c:\users\owner\documents\college\fall 2012\cs 368 - learn c++\program3\program3\sortedlist.cpp(159): error C2657: 'SortedList::*' found at the start of a statement (did you forget to specify a type?) 1>c:\users\owner\documents\college\fall 2012\cs 368 - learn c++\program3\program3\sortedlist.cpp(159): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 1>c:\users\owner\documents\college\fall 2012\cs 368 - learn c++\program3\program3\sortedlist.cpp(159): error C2065: 'L' : undeclared identifier 1>c:\users\owner\documents\college\fall 2012\cs 368 - learn c++\program3\program3\sortedlist.cpp(159): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 1>c:\users\owner\documents\college\fall 2012\cs 368 - learn c++\program3\program3\sortedlist.cpp(159): fatal error C1903: unable to recover from previous error(s); stopping compilation ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Help would be greatly appreciated...ASAP

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  • Public class: Makes pointer from integer without cast

    - by meridimus
    I have written a class to help save and load data for the sake of persistence for my iPhone application but I have a problem with some NSUIntegers that I'm passing across. Basically, I have the code to use pointers, but eventually it has to start out being an actual value right? So I get this error warning: passing argument 1 of 'getSaveWithCampaign:andLevel:' makes pointer from integer without a cast My code is laid out like so. (Persistence is the name of the class) NSDictionary *saveData = [Persistence getSaveWithCampaign:currentCampaign andLevel:[indexPath row]]; Here's Persistence.m #import "Persistence.h" @implementation Persistence + (NSString *)dataFilePath { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; return [documentsDirectory stringByAppendingPathComponent:kSaveFilename]; } + (NSDictionary *)getSaveWithCampaign:(NSUInteger *)campaign andLevel:(NSUInteger *)level { NSString *filePath = [self dataFilePath]; if([[NSFileManager defaultManager] fileExistsAtPath:filePath]) { NSDictionary *saveData = [[NSDictionary alloc] initWithContentsOfFile:filePath]; NSString *campaignAndLevelKey = [self makeCampaign:campaign andLevelKey:level]; NSDictionary *campaignAndLevelData = [saveData objectForKey:campaignAndLevelKey]; [saveData release]; return campaignAndLevelData; } else { return nil; } } + (NSString *)makeCampaign:(NSUInteger *)campaign andLevelKey:(NSUInteger *)level { return [[NSString stringWithFormat:@"%d - ", campaign+1] stringByAppendingString:[NSString stringWithFormat:@"%d", level+1]]; } @end

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  • When to use pointer to a class and when to just instantiate it as a variable

    - by Enders
    Im sort of confused by it. The best I could find was reading through the cplusplus.com tutorial and all they have to say about pointers to classes. "It is perfectly valid to create pointers that point to classes. We simply have to consider that once declared, a class becomes a valid type, so we can use the class name as the type for the pointer" Which tells me nothing about when to use them over the normal instantiation. I've seen the - operator many times, and looked at some codes but cant really decipher why they did it. Generic examples will be appreciated; but more specifically related to gui programming. Its where I encountered it first. QGridLayout *mainLayout = new QGridLayout; mainLayout->addWidget(nameLabel, 0, 0); mainLayout->addWidget(nameLine, 0, 1); mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop); mainLayout->addWidget(addressText, 1, 1); Why not QGridLayout mainLayout mainLayout.addWidget ... (It doesnt compile if I change the sample code to that and try it but you get the point) Thanks in advance

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  • Acessing a struct member, using a pointer to a vector of structs. Error:base operand of '->' has non-pointer type

    - by Matt Munson
    #include <iostream> #include <vector> using namespace std; struct s_Astruct { vector <int> z; }; int main () { vector <s_Astruct> v_a; for(int q=0;q<10;q++) { v_a.push_back(s_Astruct()); for(int w =0;w<5;w++) v_a[q].z.push_back(8); } vector <s_Astruct> * p_v_a = & v_a; cout << p_v_a[0]->z[4]; //error: base operand of '->' has non-pointer type //'__gnu_debug_def::vector<s_Astruct, std::allocator<s_Astruct> >' } There seems to be some issue with this sort of operation that I don't understand. In the code that I'm working on I actually have things like p_class-vector[]-vector[]-int; and I'm getting a similar error.

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  • Pointer reference and dereference

    - by ZhekakehZ
    I have the following code: #include <iostream> char ch[] = "abcd"; int main() { std::cout << (long)(int*)(ch+0) << ' ' << (long)(int*)(ch+1) << ' ' << (long)(int*)(ch+2) << ' ' << (long)(int*)(ch+3) << std::endl; std::cout << *(int*)(ch+0) << ' ' << *(int*)(ch+1) << ' ' << *(int*)(ch+2) << ' ' << *(int*)(ch+3) << std::endl; std::cout << int('abcd') << ' ' << int('bcd') << ' ' << int('cd') << ' ' << int('d') << std::endl; } My question is why the pointer of 'd' is 100 ? I think it should be: int('d') << 24; //plus some trash on stack after ch And the question is why the second and the third line of the stdout are different ? 6295640 6295641 6295642 6295643 1684234849 6579042 25699 100 1633837924 6447972 25444 100 Thanks.

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  • Null Pointer Exception

    - by user1507835
    I am getting a null pointer exception, but I dont know why. I checked to see if the cell was null before I read it to a string. So, why is that string null? private void fillArray() private void fillArray() { try { readBook = new HSSFWorkbook(readFile); } catch (IOException e) { System.out .println("If we know what we're doing, no one should ever see this line."); } if (readBook != null) {HSSFSheet infoSheet = readBook.getSheetAt(0); HSSFRow headingsRow = infoSheet.getRow(0); int i = 0; HSSFCell cell = headingsRow.getCell(i); String columnHeading = cell.toString(); while (cell != null && !(cell.toString().equals(""))) { cell = headingsRow.getCell(i); columnHeading = cell.toString(); columnHeadings.add(columnHeading); i++; } if(columnListIsSetup == false) { createList(); columnListIsSetup = true; } }

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  • Virtual functions - base class pointer

    - by user980411
    I understood why a base class pointer is made to point to a derived class object. But, I fail to understand why we need to assign to it, a base class object, when it is a base class object by itself. Can anyone please explain that? #include <iostream> using namespace std; class base { public: virtual void vfunc() { cout << "This is base's vfunc().\n"; } }; class derived1 : public base { public: void vfunc() { cout << "This is derived1's vfunc().\n"; } }; int main() { base *p, b; derived1 d1; // point to base p = &b; p->vfunc(); // access base's vfunc() // point to derived1 p = &d1; p->vfunc(); // access derived1's vfunc() return 0; }

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  • Does it exist: smart pointer, owned by one object allowing access.

    - by Noah Roberts
    I'm wondering if anyone's run across anything that exists which would fill this need. Object A contains an object B. It wants to provide access to that B to clients through a pointer (maybe there's the option it could be 0, or maybe the clients need to be copiable and yet hold references...whatever). Clients, lets call them object C, would normally, if we're perfect developers, be written carefully so as to not violate the lifetime semantics of any pointer to B they might have...but we're not perfect, in fact we're pretty dumb half the time. So what we want is for object C to have a pointer to object B that is not "shared" ownership but that is smart enough to recognize a situation in which the pointer is no longer valid, such as when object A is destroyed or it destroys object B. Accessing this pointer when it's no longer valid would cause an assertion/exception/whatever. In other words, I wish to share access to data in a safe, clear way but retain the original ownership semantics. Currently, because I've not been able to find any shared pointer in which one of the objects owns it, I've been using shared_ptr in place of having such a thing. But I want clear owneship and shared/weak pointer doesn't really provide that. Would be nice further if this smart pointer could be attached to member variables and not just hold pointers to dynamically allocated memory regions. If it doesn't exist I'm going to make it, so I first want to know if someone's already released something out there that does it. And, BTW, I do realize that things like references and pointers do provide this sort of thing...I'm looking for something smarter.

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  • C++0x Smart Pointer Comparisons: Inconsistent, what's the rationale?

    - by GManNickG
    In C++0x (n3126), smart pointers can be compared, both relationally and for equality. However, the way this is done seems inconsistent to me. For example, shared_ptr defines operator< be equivalent to: template <typename T, typename U> bool operator<(const shared_ptr<T>& a, const shared_ptr<T>& b) { return std::less<void*>()(a.get(), b.get()); } Using std::less provides total ordering with respect to pointer values, unlike a vanilla relational pointer comparison, which is unspecified. However, unique_ptr defines the same operator as: template <typename T1, typename D1, typename T2, typename D2> bool operator<(const unique_ptr<T1, D1>& a, const unique_ptr<T2, D2>& b) { return a.get() < b.get(); } It also defined the other relational operators in similar fashion. Why the change in method and "completeness"? That is, why does shared_ptr use std::less while unique_ptr uses the built-in operator<? And why doesn't shared_ptr also provide the other relational operators, like unique_ptr? I can understand the rationale behind either choice: with respect to method: it represents a pointer so just use the built-in pointer operators, versus it needs to be usable within an associative container so provide total ordering (like a vanilla pointer would get with the default std::less predicate template argument) with respect to completeness: it represents a pointer so provide all the same comparisons as a pointer, versus it is a class type and only needs to be less-than comparable to be used in an associative container, so only provide that requirement But I don't see why the choice changes depending on the smart pointer type. What am I missing? Bonus/related: std::shared_ptr seems to have followed from boost::shared_ptr, and the latter omits the other relational operators "by design" (and so std::shared_ptr does too). Why is this?

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  • iPhone Objective C - error: pointer value used where a floating point value was expected

    - by Mausimo
    I do not understand why i am getting this error. Here is the related code: Photo.h #import <CoreData/CoreData.h> @class Person; @interface Photo : NSManagedObject { } @property (nonatomic, retain) NSData * imageData; @property (nonatomic, retain) NSNumber * Latitude; @property (nonatomic, retain) NSString * ImageName; @property (nonatomic, retain) NSString * ImagePath; @property (nonatomic, retain) NSNumber * Longitude; @property (nonatomic, retain) Person * PhotoToPerson; @end Photo.m #import "Photo.h" #import "Person.h" @implementation Photo @dynamic imageData; @dynamic Latitude; @dynamic ImageName; @dynamic ImagePath; @dynamic Longitude; @dynamic PhotoToPerson; @end This is a mapViewController.m class i have created. If i run this, the CLLocationDegrees CLLat and CLLong lines: CLLocationDegrees CLLat = (CLLocationDegrees)photo.Latitude; CLLocationDegrees CLLong = (CLLocationDegrees)photo.Longitude; give me the error : pointer value used where a floating point value was expected. for(int i = 0; i < iPerson; i++) { //get the person that corresponds to the row indexPath that is currently being rendered and set the text Person * person = (Person *)[myArrayPerson objectAtIndex:i]; //get the photos associated with the person NSArray * PhotoArray = [person.PersonToPhoto allObjects]; int iPhoto = [PhotoArray count]; for(int j = 0; j < iPhoto; j++) { //get the first photo (all people will have atleast 1 photo, else they will not exist). Set the image Photo * photo = (Photo *)[PhotoArray objectAtIndex:j]; if(photo.Latitude != nil && photo.Longitude != nil) { MyAnnotation *ann = [[MyAnnotation alloc] init]; ann.title = photo.ImageName; ann.subtitle = photo.ImageName; CLLocationCoordinate2D cord; CLLocationDegrees CLLat = (CLLocationDegrees)photo.Latitude; CLLocationDegrees CLLong = (CLLocationDegrees)photo.Longitude; cord.latitude = CLLat; cord.longitude = CLLong; ann.coordinate = cord; [mkMapView addAnnotation:ann]; } } }

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  • Issue with dynamic array Queue data structure with void pointer

    - by Nazgulled
    Hi, Maybe there's no way to solve this the way I'd like it but I don't know everything so I better ask... I've implemented a simple Queue with a dynamic array so the user can initialize with whatever number of items it wants. I'm also trying to use a void pointer as to allow any data type, but that's the problem. Here's my code: typedef void * QueueValue; typedef struct sQueueItem { QueueValue value; } QueueItem; typedef struct sQueue { QueueItem *items; int first; int last; int size; int count; } Queue; void queueInitialize(Queue **queue, size_t size) { *queue = xmalloc(sizeof(Queue)); QueueItem *items = xmalloc(sizeof(QueueItem) * size); (*queue)->items = items; (*queue)->first = 0; (*queue)->last = 0; (*queue)->size = size; (*queue)->count = 0; } Bool queuePush(Queue * const queue, QueueValue value, size_t val_sz) { if(isNull(queue) || isFull(queue)) return FALSE; queue->items[queue->last].value = xmalloc(val_sz); memcpy(queue->items[queue->last].value, value, val_sz); queue->last = (queue->last+1) % queue->size; queue->count += 1; return TRUE; } Bool queuePop(Queue * const queue, QueueValue *value) { if(isEmpty(queue)) return FALSE; *value = queue->items[queue->first].value; free(queue->items[queue->first].value); queue->first = (queue->first+1) % queue->size; queue->count -= 1; return TRUE; } The problem lies on the queuePop function. When I call it, I lose the value because I free it right away. I can't seem to solve this dilemma. I want my library to be generic and modular. The user should not care about allocating and freeing memory, that's the library's job. How can the user still get the value from queuePop and let the library handle all memory allocs/frees?

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  • 23warning: assignment makes pointer from integer without a cast

    - by FILIaS
    Im new in programming c with arrays and files. Im just trying to run the following code but i get warnings like that: 23 44 warning: assignment makes pointer from integer without a cast Any help? It might be silly... but I cant find what's wrong. #include<stdio.h> FILE *fp; FILE *cw; char filename_game[40],filename_words[40]; int main() { while(1) { /* Input filenames. */ printf("\n Enter the name of the file with the cryptwords array: \n"); gets(filename_game); printf("\n Give the name of the file with crypted words:\n"); gets(filename_words); /* Try to open the file with the game */ if (fp=fopen("crypt.txt","r")!=NULL) //line23 { printf("\n Successful opening %s \n",filename_game); fclose(fp); puts("\n Enter x to exit,any other to continue! \n "); if ( (getc(stdin))=='x') break; else continue; } else { fprintf(stderr,"ERROR!%s \n",filename_game); puts("\n Enter x to exit,any other to continue! \n"); if (getc(stdin)=='x') break; else continue; } /* Try to open the file with the names. */ if (cw=fopen("words.txt","r")!=NULL) //line 44 { printf("\n Successful opening %s \n",filename_words); fclose(cw); puts("\n Enter x to exit,any other to continue \n "); if ( (getc(stdin))=='x') break; else continue; } else { fprintf(stderr,"ERROR!%s \n",filename_words); puts("\n Enter x to exit,any other to continue! \n"); if (getc(stdin)=='x') break; else continue; } } return 0; }

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  • iPhone development: pointer being freed was not allocated

    - by w4nderlust
    Hello, i got this message from the debugger: Pixture(1257,0xa0610500) malloc: *** error for object 0x21a8000: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug so i did a bit of tracing and got: (gdb) shell malloc_history 1257 0x21a8000 ALLOC 0x2196a00-0x21a89ff [size=73728]: thread_a0610500 |start | main | UIApplicationMain | GSEventRun | GSEventRunModal | CFRunLoopRunInMode | CFRunLoopRunSpecific | __CFRunLoopDoObservers | CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) | CA::Transaction::commit() | CA::Context::commit_transaction(CA::Transaction*) | CALayerDisplayIfNeeded | -[CALayer _display] | CABackingStoreUpdate | backing_callback(CGContext*, void*) | -[CALayer drawInContext:] | -[UIView(CALayerDelegate) drawLayer:inContext:] | -[AvatarView drawRect:] | -[AvatarView overlayPNG:] | +[UIImageUtility createMaskOf:] | UIGraphicsGetImageFromCurrentImageContext | CGBitmapContextCreateImage | create_bitmap_data_provider | malloc | malloc_zone_malloc and i really can't understand what i am doing wrong. here's the code of the [UIImageUtility createMaskOf:] function: + (UIImage *)createMaskOf:(UIImage *)source { CGRect rect = CGRectMake(0, 0, source.size.width, source.size.height); UIGraphicsBeginImageContext(CGSizeMake(source.size.width, source.size.height)); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextTranslateCTM(context, 0, source.size.height); CGContextScaleCTM(context, 1.0, -1.0); UIImage *original = [self createGrayCopy:source]; CGContextRef context2 = CGBitmapContextCreate(NULL, source.size.width, source.size.height, 8, 4 * source.size.width, CGColorSpaceCreateDeviceRGB(), kCGImageAlphaNoneSkipLast); CGContextDrawImage(context2, CGRectMake(0, 0, source.size.width, source.size.height), original.CGImage); CGImageRef unmasked = CGBitmapContextCreateImage(context2); const float myMaskingColorsFrameColor[6] = { 1,256,1,256,1,256 }; CGImageRef mask = CGImageCreateWithMaskingColors(unmasked, myMaskingColorsFrameColor); CGContextSetRGBFillColor (context, 256,256,256, 1); CGContextFillRect(context, rect); CGContextDrawImage(context, rect, mask); UIImage *whiteMasked = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return whiteMasked; } the other custom function called before that is the following: - (UIImage *)overlayPNG:(SinglePart *)sp { NSLog([sp description]); // Rect and context setup CGRect rect = CGRectMake(0, 0, sp.image.size.width, sp.image.size.height); NSLog(@"%f x %f", sp.image.size.width, sp.image.size.height); // Create an image of a color filled rectangle UIImage *baseColor = nil; if (sp.hasOwnColor) { baseColor = [UIImageUtility imageWithRect:rect ofColor:sp.color]; } else { SinglePart *facePart = [editingAvatar.face.partList objectAtIndex:0]; baseColor = [UIImageUtility imageWithRect:rect ofColor:facePart.color]; } // Crete the mask of the layer UIImage *mask = [UIImageUtility createMaskOf:sp.image]; mask = [UIImageUtility createGrayCopy:mask]; // Create a new context for merging the overlay and a mask of the layer UIGraphicsBeginImageContext(CGSizeMake(sp.image.size.width, sp.image.size.height)); CGContextRef context2 = UIGraphicsGetCurrentContext(); // Adjust the coordinate system so that the origin // is in the lower left corner of the view and the // y axis points up CGContextTranslateCTM(context2, 0, sp.image.size.height); CGContextScaleCTM(context2, 1.0, -1.0); // Create masked overlay color layer CGImageRef MaskedImage = CGImageCreateWithMask (baseColor.CGImage, mask.CGImage); // Draw the base color layer CGContextDrawImage(context2, rect, MaskedImage); // Get the result of the masking UIImage* overlayMasked = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); UIGraphicsBeginImageContext(CGSizeMake(sp.image.size.width, sp.image.size.height)); CGContextRef context = UIGraphicsGetCurrentContext(); // Adjust the coordinate system so that the origin // is in the lower left corner of the view and the // y axis points up CGContextTranslateCTM(context, 0, sp.image.size.height); CGContextScaleCTM(context, 1.0, -1.0); // Get the result of the blending of the masked overlay and the base image CGContextDrawImage(context, rect, overlayMasked.CGImage); // Set the blend mode for the next drawn image CGContextSetBlendMode(context, kCGBlendModeOverlay); // Component image drawn CGContextDrawImage(context, rect, sp.image.CGImage); UIImage* blendedImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); CGImageRelease(MaskedImage); return blendedImage; }

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  • Can't access a map member from a pointer

    - by fjfnaranjo
    Hi. That's my first question :) I'm storing the configuration of my program in a Group->Key->Value form, like the old INIs. I'm storing the information in a pair of structures. First one, I'm using a std::map with string+ptr for the groups info (the group name in the string key). The second std::map value is a pointer to the sencond structure, a std::list of std::maps, with the finish Key->Value pairs. The Key-Value pairs structure is created dynamically, so the config structure is: std::map< std::string , std::list< std::map<std::string,std::string> >* > lv1; Well, I'm trying to implement two methods to check the existence of data in the internal config. The first one, check the existence of a group in the structure: bool isConfigLv1(std::string); bool ConfigManager::isConfigLv1(std::string s) { return !(lv1.find(s)==lv1.end()); } The second method, is making me crazy... It check the existence for a key inside a group. bool isConfigLv2(std::string,std::string); bool ConfigManager::isConfigLv2(std::string s,std::string d) { if(!isConfigLv1(s)) return false; std::map< std::string , std::list< std::map<std::string,std::string> >* >::iterator it; std::list< std::map<std::string,std::string> >* keyValue; std::list< std::map<std::string,std::string> >::iterator keyValueIt; it = lv1.find(s); keyValue = (*it).second; for ( keyValueIt = keyValue->begin() ; keyValueIt != keyValue->end() ; keyValueIt++ ) if(!((*keyValueIt).second.find(d)==(*keyValueIt).second.end())) return true; return false; } I don't understand what is wrong. The compiler says: ConfigManager.cpp||In member function ‘bool ConfigManager::isConfigLv2(std::string, std::string)’:| ConfigManager.cpp|(line over return true)|error: ‘class std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >’ has no member named ‘second’| But it has to have the second member, because it's a map iterator... Any suggestion about what's happening? Sorry for my English :P, and consider I'm doing it as a exercise, I know there are a lot of cool configuration managers.

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  • Spring with Castor - Null Pointer Exception when initialising Application Context

    - by babyangel86
    Hi, I'm trying to register my castor mapping files with spring and I appear to be getting a null pointer exception. In my application context I have: <bean id="xmlContext" class="org.castor.spring.xml.XMLContextFactoryBean"> <property name="mappingLocations"> <list> <value>DistributionSamplerMappings.xml</value> </list> </property> <property name="castorProperties"> <props> <prop key="org.exolab.castor.xml.strictelements">false</prop> </props> </property> </bean> <bean id="marshaller" class="org.castor.spring.xml.CastorMarshallerFactoryBean"> <property name="xmlContext"><ref local="xmlContext"/></property> </bean> <bean id="unmarshaller" class="org.castor.spring.xml.CastorUnmarshallerFactoryBean"> <property name="xmlContext"> <ref local="xmlContext"/></property> <property name="ignoreExtraElements"><value>true</value></property> <property name="ignoreExtraAttributes"><value>true</value></property> </bean> Where DistributionSamplerMappings.xml lives in the same dir as the application context. I've tried using the spring-xml jar 1.2.1 and 1.5.3. but none of them seem to help. The exception being thrown back is: SEVERE: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'xmlContext' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3830) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4337) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:566) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: java.lang.NullPointerException at org.castor.spring.xml.XMLContextFactoryBean.afterPropertiesSet(XMLContextFactoryBean.java:118) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335) ... 30 more I'm using Spring 2.5.6 and Castor 1.3.1. Looking around I find I'm not the only one who has had this problem, but I don't seem to be able to find a solution. Any help would be much appreciated.

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  • How to have struct members accessible in different ways

    - by Paul J. Lucas
    I want to have a structure token that has start/end pairs for position, sentence, and paragraph information. I also want the members to be accessible in two different ways: as a start/end pair and individually. Given: struct token { struct start_end { int start; int end; }; start_end pos; start_end sent; start_end para; typedef start_end token::*start_end_ptr; }; I can write a function, say distance(), that computes the distance between any of the three start/end pairs like: int distance( token const &i, token const &j, token::start_end_ptr mbr ) { return (j.*mbr).start - (i.*mbr).end; } and call it like: token i, j; int d = distance( i, j, &token::pos ); that will return the distance of the pos pair. But I can also pass &token::sent or &token::para and it does what I want. Hence, the function is flexible. However, now I also want to write a function, say max(), that computes the maximum value of all the pos.start or all the pos.end or all the sent.start, etc. If I add: typedef int token::start_end::*int_ptr; I can write the function like: int max( list<token> const &l, token::int_ptr p ) { int m = numeric_limits<int>::min(); for ( list<token>::const_iterator i = l.begin(); i != l.end(); ++i ) { int n = (*i).pos.*p; // NOT WHAT I WANT: It hard-codes 'pos' if ( n > m ) m = n; } return m; } and call it like: list<token> l; l.push_back( i ); l.push_back( j ); int m = max( l, &token::start_end::start ); However, as indicated in the comment above, I do not want to hard-code pos. I want the flexibility of accessible the start or end of any of pos, sent, or para that will be passed as a parameter to max(). I've tried several things to get this to work (tried using unions, anonymous unions, etc.) but I can't come up with a data structure that allows the flexibility both ways while having each value stored only once. Any ideas how to organize the token struct so I can have what I want? Attempt at clarification Given struct of pairs of integers, I want to be able to "slice" the data in two distinct ways: By passing a pointer-to-member of a particular start/end pair so that the called function operates on any pair without knowing which pair. The caller decides which pair. By passing a pointer-to-member of a particular int (i.e., only one int of any pair) so that the called function operates on any int without knowing either which int or which pair said int is from. The caller decides which int of which pair. Another example for the latter would be to sum, say, all para.end or all sent.start. Also, and importantly: for #2 above, I'd ideally like to pass only a single pointer-to-member to reduce the burden on the caller. Hence, me trying to figure something out using unions.

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  • [C] Texture management / pointer question

    - by ndg
    I'm working on a texture management and animation solution for a small side project of mine. Although the project uses Allegro for rendering and input, my question mostly revolves around C and memory management. I wanted to post it here to get thoughts and insight into the approach, as I'm terrible when it comes to pointers. Essentially what I'm trying to do is load all of my texture resources into a central manager (textureManager) - which is essentially an array of structs containing ALLEGRO_BITMAP objects. The textures stored within the textureManager are mostly full sprite sheets. From there, I have an anim(ation) struct, which contains animation-specific information (along with a pointer to the corresponding texture within the textureManager). To give you an idea, here's how I setup and play the players 'walk' animation: createAnimation(&player.animations[0], "media/characters/player/walk.png", player.w, player.h); playAnimation(&player.animations[0], 10); Rendering the animations current frame is just a case of blitting a specific region of the sprite sheet stored in textureManager. For reference, here's the code for anim.h and anim.c. I'm sure what I'm doing here is probably a terrible approach for a number of reasons. I'd like to hear about them! Am I opening myself to any pitfalls? Will this work as I'm hoping? anim.h #ifndef ANIM_H #define ANIM_H #define ANIM_MAX_FRAMES 10 #define MAX_TEXTURES 50 struct texture { bool active; ALLEGRO_BITMAP *bmp; }; struct texture textureManager[MAX_TEXTURES]; typedef struct tAnim { ALLEGRO_BITMAP **sprite; int w, h; int curFrame, numFrames, frameCount; float delay; } anim; void setupTextureManager(void); int addTexture(char *filename); int createAnimation(anim *a, char *filename, int w, int h); void playAnimation(anim *a, float delay); void updateAnimation(anim *a); #endif anim.c void setupTextureManager() { int i = 0; for(i = 0; i < MAX_TEXTURES; i++) { textureManager[i].active = false; } } int addTextureToManager(char *filename) { int i = 0; for(i = 0; i < MAX_TEXTURES; i++) { if(!textureManager[i].active) { textureManager[i].bmp = al_load_bitmap(filename); textureManager[i].active = true; if(!textureManager[i].bmp) { printf("Error loading texture: %s", filename); return -1; } return i; } } return -1; } int createAnimation(anim *a, char *filename, int w, int h) { int textureId = addTextureToManager(filename); if(textureId > -1) { a->sprite = textureManager[textureId].bmp; a->w = w; a->h = h; a->numFrames = al_get_bitmap_width(a->sprite) / w; printf("Animation loaded with %i frames, given resource id: %i\n", a->numFrames, textureId); } else { printf("Texture manager full\n"); return 1; } return 0; } void playAnimation(anim *a, float delay) { a->curFrame = 0; a->frameCount = 0; a->delay = delay; } void updateAnimation(anim *a) { a->frameCount ++; if(a->frameCount >= a->delay) { a->frameCount = 0; a->curFrame ++; if(a->curFrame >= a->numFrames) { a->curFrame = 0; } } }

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  • null pointer exception when starting new activity

    - by acithium
    Okay, I'm getting a null pointer exception when I start my third activity. Here is the LogCat message: 12-28 04:38:00.350: ERROR/AndroidRuntime(776): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.acithium.main/com.acithium.rss.ShowDescription}: java.lang.NullPointerException 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.os.Handler.dispatchMessage(Handler.java:99) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.os.Looper.loop(Looper.java:123) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread.main(ActivityThread.java:4203) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at java.lang.reflect.Method.invokeNative(Native Method) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at java.lang.reflect.Method.invoke(Method.java:521) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at dalvik.system.NativeStart.main(Native Method) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): Caused by: java.lang.NullPointerException 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at com.acithium.rss.ShowDescription.onCreate(ShowDescription.java:48) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 12-28 04:38:00.350: ERROR/AndroidRuntime(776): ... 11 more Here is the section of code where I call the activity: public void onItemClick(AdapterView parent, View v, int position, long id) { Log.i(tag,"item clicked! [" + feed.getItem(position).getTitle() + "]"); Intent itemintent = new Intent(this,com.acithium.rss.ShowDescription.class); //Intent itemintent = new Intent(); //itemintent.setClassName("com.acithium.main", "com.acithium.rss.ShowDescription"); Bundle b = new Bundle(); b.putString("title", feed.getItem(position).getTitle()); b.putString("description", feed.getItem(position).getDescription()); b.putString("link", feed.getItem(position).getLink()); itemintent.putExtra("android.intent.extra.INTENT", b); startActivityForResult(itemintent,0); } And here is new activity class that is called: public class ShowDescription extends Activity { public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.showdescription); String theStory = null; Intent startingIntent = getIntent(); if (startingIntent != null) { Bundle b = startingIntent.getBundleExtra("android.intent.extra.INTENT"); if (b == null) { theStory = "bad bundle?"; } else { theStory = b.getString("title") + "\n\n" + b.getString("description") + "\n\nMore information:\n" + b.getString("link"); } } else { theStory = "Information Not Found."; } TextView db= (TextView) findViewById(R.id.storybox); db.setText(theStory); Button backbutton = (Button) findViewById(R.id.back); backbutton.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { finish(); } }); } }

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  • Make interchangeable class types via pointer casting only, without having to allocate any new objects?

    - by HostileFork
    UPDATE: I do appreciate "don't want that, want this instead" suggestions. They are useful, especially when provided in context of the motivating scenario. Still...regardless of goodness/badness, I've become curious to find a hard-and-fast "yes that can be done legally in C++11" vs "no it is not possible to do something like that". I want to "alias" an object pointer as another type, for the sole purpose of adding some helper methods. The alias cannot add data members to the underlying class (in fact, the more I can prevent that from happening the better!) All aliases are equally applicable to any object of this type...it's just helpful if the type system can hint which alias is likely the most appropriate. There should be no information about any specific alias that is ever encoded in the underlying object. Hence, I feel like you should be able to "cheat" the type system and just let it be an annotation...checked at compile time, but ultimately irrelevant to the runtime casting. Something along these lines: Node<AccessorFoo>* fooPtr = Node<AccessorFoo>::createViaFactory(); Node<AccessorBar>* barPtr = reinterpret_cast< Node<AccessorBar>* >(fooPtr); Under the hood, the factory method is actually making a NodeBase class, and then using a similar reinterpret_cast to return it as a Node<AccessorFoo>*. The easy way to avoid this is to make these lightweight classes that wrap nodes and are passed around by value. Thus you don't need casting, just Accessor classes that take the node handle to wrap in their constructor: AccessorFoo foo (NodeBase::createViaFactory()); AccessorBar bar (foo.getNode()); But if I don't have to pay for all that, I don't want to. That would involve--for instance--making a special accessor type for each sort of wrapped pointer (AccessorFooShared, AccessorFooUnique, AccessorFooWeak, etc.) Having these typed pointers being aliased for one single pointer-based object identity is preferable, and provides a nice orthogonality. So back to that original question: Node<AccessorFoo>* fooPtr = Node<AccessorFoo>::createViaFactory(); Node<AccessorBar>* barPtr = reinterpret_cast< Node<AccessorBar>* >(fooPtr); Seems like there would be some way to do this that might be ugly but not "break the rules". According to ISO14882:2011(e) 5.2.10-7: An object pointer can be explicitly converted to an object pointer of a different type.70 When a prvalue v of type "pointer to T1" is converted to the type "pointer to cv T2", the result is static_cast(static_cast(v)) if both T1 and T2 are standard-layout types (3.9) and the alignment requirements of T2 are no stricter than those of T1, or if either type is void. Converting a prvalue of type "pointer to T1" to the type "pointer to T2" (where T1 and T2 are object types and where the alignment requirements of T2 are no stricter than those of T1) and back to its original type yields the original pointer value. The result of any other such pointer conversion is unspecified. Drilling into the definition of a "standard-layout class", we find: has no non-static data members of type non-standard-layout-class (or array of such types) or reference, and has no virtual functions (10.3) and no virtual base classes (10.1), and has the same access control (clause 11) for all non-static data members, and has no non-standard-layout base classes, and either has no non-static data member in the most-derived class and at most one base class with non-static data members, or has no base classes with non-static data members, and has no base classes of the same type as the first non-static data member. Sounds like working with something like this would tie my hands a bit with no virtual methods in the accessors or the node. Yet C++11 apparently has std::is_standard_layout to keep things checked. Can this be done safely? Appears to work in gcc-4.7, but I'd like to be sure I'm not invoking undefined behavior.

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  • Error in installing ZTE AC2738 on ubuntu 3.0.0-12-generic

    - by Netro
    I am getting this error ,struct usb_serial_driver has no member named shutdown. I am installing on 64bit ubuntu 3.0.0-12-generic ... Beginning Verify CD ... ... Verify CD Succeed! ... Beginning Copy Install Package Files ... ... will take a long time, waiting 5 seconds, please ... Copy Install Package Files Succeed! ... 'ztemtApp' previous version not found. and install now Beginning install ... ... Current linux release version is 'Ubuntu' ... Checking 'App' process ... Checking old installation ... Installing ... Current Path is : . : /tmp/ztemt_datacard/Linux 1. Checking Previous Version ... 2. Copying Data Bin ... ... will take a few seconds, please waiting ... /tmp/ztemt_datacard/Linux 3. Auto Load Usb Driver Module ... Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service acpid restart Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the stop(8) and then start(8) utilities, e.g. stop acpid ; start acpid. The restart(8) utility is also available. acpid stop/waiting acpid start/running, process 11802 4. Changing pppd Options ... 5. Changing File Permission ... 6. Deleting Qt lib When Local QT Vertion > V4.4.0 ... ... Package 'libqtgui4' exist ... QT_VERSION = 4 7. Deleting process id file: EVDOApp.pid ... 8. Making USB Serial Driver Module : ztemt.ko ... ... will take a few seconds, please waiting ... make -C /lib/modules/3.0.0-12-generic/build M=/usr/local/bin/ztemtApp/zteusbserial/below2.6.27 modules make[1]: Entering directory `/usr/src/linux-headers-3.0.0-12-generic' CC [M] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.o /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘destroy_serial’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:159:14: error: ‘struct usb_serial_driver’ has no member named ‘shutdown’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:165:18: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_open’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:241:36: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:246:8: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:251:6: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:253:10: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:265:3: warning: passing argument 1 of ‘serial->type->open’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:265:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:265:3: warning: passing argument 2 of ‘serial->type->open’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:265:3: note: expected ‘struct usb_serial_port *’ but argument is of type ‘struct file *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:270:20: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:276:6: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:278:6: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:279:20: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_close’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:355:18: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:357:10: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:358:21: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:371:8: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:372:10: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:375:3: error: too many arguments to function ‘port->serial->type->close’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:377:11: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:378:12: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:379:9: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:380:8: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:386:20: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_write’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:407:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: warning: passing argument 1 of ‘port->serial->type->write’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: warning: passing argument 2 of ‘port->serial->type->write’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: note: expected ‘struct usb_serial_port *’ but argument is of type ‘const unsigned char *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: warning: passing argument 3 of ‘port->serial->type->write’ makes pointer from integer without a cast [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: note: expected ‘const unsigned char *’ but argument is of type ‘int’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:413:2: error: too few arguments to function ‘port->serial->type->write’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_write_room’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:429:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:435:2: warning: passing argument 1 of ‘port->serial->type->write_room’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:435:2: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_chars_in_buffer’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:451:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:457:2: warning: passing argument 1 of ‘port->serial->type->chars_in_buffer’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:457:2: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_throttle’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:472:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:479:3: warning: passing argument 1 of ‘port->serial->type->throttle’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:479:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_unthrottle’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:491:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:498:3: warning: passing argument 1 of ‘port->serial->type->unthrottle’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:498:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_ioctl’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:511:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:518:3: warning: passing argument 1 of ‘port->serial->type->ioctl’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:518:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:518:3: warning: passing argument 2 of ‘port->serial->type->ioctl’ makes integer from pointer without a cast [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:518:3: note: expected ‘unsigned int’ but argument is of type ‘struct file *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:518:3: error: too many arguments to function ‘port->serial->type->ioctl’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_set_termios’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:535:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:542:3: warning: passing argument 1 of ‘port->serial->type->set_termios’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:542:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:542:3: warning: passing argument 2 of ‘port->serial->type->set_termios’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:542:3: note: expected ‘struct usb_serial_port *’ but argument is of type ‘struct termios *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:542:3: error: too few arguments to function ‘port->serial->type->set_termios’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_break’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:554:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:561:3: warning: passing argument 1 of ‘port->serial->type->break_ctl’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:561:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_tiocmget’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:629:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:635:3: warning: passing argument 1 of ‘port->serial->type->tiocmget’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:635:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:635:3: error: too many arguments to function ‘port->serial->type->tiocmget’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘serial_tiocmset’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:651:11: error: ‘struct usb_serial_port’ has no member named ‘open_count’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:657:3: warning: passing argument 1 of ‘port->serial->type->tiocmset’ from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:657:3: note: expected ‘struct tty_struct *’ but argument is of type ‘struct usb_serial_port *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:657:3: warning: passing argument 2 of ‘port->serial->type->tiocmset’ makes integer from pointer without a cast [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:657:3: note: expected ‘unsigned int’ but argument is of type ‘struct file *’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:657:3: error: too many arguments to function ‘port->serial->type->tiocmset’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘usb_serial_port_work’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:697:12: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘port_release’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:709:2: error: ‘struct device’ has no member named ‘bus_id’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘usb_serial_probe’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:858:2: error: implicit declaration of function ‘lock_kernel’ [-Werror=implicit-function-declaration] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:861:3: error: implicit declaration of function ‘unlock_kernel’ [-Werror=implicit-function-declaration] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1034:3: error: ‘struct usb_serial_port’ has no member named ‘mutex’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1182:23: error: ‘struct device’ has no member named ‘bus_id’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1182:51: error: ‘struct device’ has no member named ‘bus_id’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1183:3: error: ‘struct device’ has no member named ‘bus_id’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘usb_serial_disconnect’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1257:13: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1258:21: error: ‘struct usb_serial_port’ has no member named ‘tty’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: At top level: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1280:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1280:2: warning: (near initialization for ‘serial_ops.ioctl’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1281:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1281:2: warning: (near initialization for ‘serial_ops.set_termios’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1284:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1284:2: warning: (near initialization for ‘serial_ops.break_ctl’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1286:2: error: unknown field ‘read_proc’ specified in initializer /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1286:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1286:2: warning: (near initialization for ‘serial_ops.ioctl’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1287:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1287:2: warning: (near initialization for ‘serial_ops.tiocmget’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1288:2: warning: initialization from incompatible pointer type [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1288:2: warning: (near initialization for ‘serial_ops.tiocmset’) [enabled by default] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘usb_serial_init’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1352:2: error: implicit declaration of function ‘info’ [-Werror=implicit-function-declaration] /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c: In function ‘fixup_generic’: /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1406:2: error: ‘struct usb_serial_driver’ has no member named ‘shutdown’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1406:2: error: ‘struct usb_serial_driver’ has no member named ‘shutdown’ /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1406:1: error: ‘usb_serial_generic_shutdown’ undeclared (first use in this function) /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:1406:1: note: each undeclared identifier is reported only once for each function it appears in cc1: some warnings being treated as errors make[2]: *** [/usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.o] Error 1 make[1]: *** [_module_/usr/local/bin/ztemtApp/zteusbserial/below2.6.27] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.0.0-12-generic' make: *** [modules] Error 2 Install finished! Any suggestion? Update: from installation document , In some special cases, the setup package can’t automatically compile the driver, so you need change the configurations yourself and manually compile the driver. Method: enter the directory: /usr/local/bin/ztemtApp/zteusbserial, and find the corresponding kernel version of current system. I can see 2.6.27 2.6.28 2.6.29 2.6.30 2.6.31 2.6.32 2.6.33 2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 below2.6.2 in the directory. Which version shall I pick up for installation? Readme file says, we have to do this to insert ztemt.ko in kernel.

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  • Google et Blink tournent le dos au W3C et à Pointer Events de Microsoft, au profit de Touch Events d'Apple ?

    Google et Blink tournent le dos au W3C et à Pointer Events de Microsoft au profit de Touch Events d'Apple ? Google et son moteur de rendu Web Blink ont finalement tranché en défaveur du standard du W3C, en effet à travers un bref communiqué sur la plateforme de développement de Blink, Google vient d'annoncer l'abandon de l'API Pointer Events, jusqu'ici présentée comme le futur standard du W3C en remplacement de Touch Events.Pour rappel Blink est le fork du célèbre moteur de rendu web Webkit actuellement...

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  • Reason for Null pointer Exception

    - by Rahul Varma
    Hi, I cant figure out why my program is showing null pointer exception. Plz help me...Here's the program... public class MusicListActivity extends Activity { List<HashMap<String, String>> songNodeDet = new ArrayList<HashMap<String,String>>(); HashMap<?,?>[] songNodeWeb; XMLRPCClient client; String logInSess; ArrayList<String> paths=new ArrayList<String>(); public ListAdapter adapter ; Object[] websongListObject; List<SongsList> SngList=new ArrayList<SongsList>(); Runnable r; ProgressDialog p; ListView lv; String s; @Override public void onCreate(Bundle si){ super.onCreate(si); setContentView(R.layout.openadiuofile); lv=(ListView)findViewById(R.id.list1); r=new Runnable(){ public void run(){ try{ getSongs(); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XMLRPCException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }; Thread t=new Thread(r,"background"); t.start(); Log.e("***","process over"); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); } private Runnable returnRes = new Runnable() { @Override public void run() { Log.d("handler","handler"); removeDialog(0); p.dismiss(); list(); } }; public void list() { Log.d("#####","#####"); LayoutInflater inflater=getLayoutInflater(); String[] from={}; int[] n={}; adapter=new SongsAdapter(getApplicationContext(),songNodeDet,R.layout.row,from,n,inflater); lv.setAdapter(adapter);} private Handler handler = new Handler() { public void handleMessage(Message msg){ Log.d("*****","handler"); removeDialog(0); p.dismiss(); } }; public void webObjectList(Object[] imgListObj,String logInSess) throws XMLRPCException{ songNodeWeb = new HashMap<?,?>[imgListObj.length]; if(imgListObj!=null){ Log.e("completed","completed"); for(int i=0;i<imgListObj.length;i++){ //imgListObj.length songNodeWeb[i]=(HashMap<?,?>)imgListObj[i]; String nodeid=(String) songNodeWeb[i].get("nid"); break; Log.e("img",i+"completed"); HashMap<String,String> nData=new HashMap<String,String>(); nData.put("nid",nodeid); Object nodeget=client.call("node.get",logInSess,nodeid); HashMap<?,?> imgNode=(HashMap<?,?>)nodeget; String titleName=(String) imgNode.get("titles"); String movieName=(String) imgNode.get("album"); String singerName=(String) imgNode.get("artist"); nData.put("titles", titleName); nData.put("album", movieName); nData.put("artist", singerName); Object[] imgObject=(Object[])imgNode.get("field_image"); HashMap<?,?>[] imgDetails=new HashMap<?,?>[imgObject.length]; imgDetails[0]=(HashMap<?, ?>)imgObject[0]; String path=(String) imgDetails[0].get("filepath"); if(path.contains(" ")){ path=path.replace(" ", "%20"); } String imgPath="http://www.gorinka.com/"+path; paths.add(imgPath); nData.put("path", imgPath); Log.e("my path",path); String mime=(String)imgDetails[0].get("filemime"); nData.put("mime", mime); SongsList songs=new SongsList(titleName,movieName,singerName,imgPath,imgPath); SngList.add(i,songs); songNodeDet.add(i,nData); } Log.e("paths values",paths.toString()); // return imgNodeDet; handler.sendEmptyMessage(0); } } public void getSongs() throws MalformedURLException, XMLRPCException { String ur="http://www.gorinka.com/?q=services/xmlrpc"; URL u=new URL(ur); client = new XMLRPCClient(u); //Connecting to the website HashMap<?, ?> siteConn =(HashMap<?, ?>) client.call("system.connect"); // Getting initial sessio id String initSess=(String)siteConn.get("sessid"); //Login to the site using session id HashMap<?, ?> logInConn =(HashMap<?, ?>) client.call("user.login",initSess,"prakash","stellentsoft2009"); //Getting Login sessid logInSess=(String)logInConn.get("sessid"); websongListObject =(Object[]) client.call("nodetype.get",logInSess,""); webObjectList(websongListObject,logInSess); Log.d("webObjectList","webObjectList"); runOnUiThread(returnRes); } } Here's the Adapter associated... public class SongsAdapter extends SimpleAdapter{ static List<HashMap<String,String>> songsList; Context context; LayoutInflater inflater; public SongsAdapter(Context context,List<HashMap<String,String>> imgListWeb,int layout,String[] from,int[] to,LayoutInflater inflater) { super(context,songsList,layout,from,to); this.songsList=songsList; this.context=context; this.inflater=inflater; // TODO Auto-generated constructor stub } @Override public View getView(int postition,View convertView,ViewGroup parent)throws java.lang.OutOfMemoryError{ try { View v = ((LayoutInflater) inflater).inflate(R.layout.row,null); ImageView images=(ImageView)v.findViewById(R.id.image); TextView tvTitle=(TextView)v.findViewById(R.id.text1); TextView tvAlbum=(TextView)v.findViewById(R.id.text2); TextView tvArtist=(TextView)v.findViewById(R.id.text3); HashMap<String,String> songsHash=songsList.get(postition); String path=songsHash.get("path"); String title=songsHash.get("title"); String album=songsHash.get("album"); String artist=songsHash.get("artist"); String imgPath=path; final ImageView imageView = (ImageView) v.findViewById(R.id.image); AsyncImageLoaderv asyncImageLoader=new AsyncImageLoaderv(); Bitmap cachedImage = asyncImageLoader.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() { public void imageLoaded(Bitmap imageDrawable, String imageUrl) { imageView.setImageBitmap(imageDrawable); } }); imageView.setImageBitmap(cachedImage); tvTitle.setText(title); tvAlbum.setText(album); tvArtist.setText(artist); return v; } catch(Exception e){ Log.e("error",e.toString()); } return null; } public static Bitmap loadImageFromUrl(String url) { InputStream inputStream;Bitmap b; try { inputStream = (InputStream) new URL(url).getContent(); BitmapFactory.Options bpo= new BitmapFactory.Options(); bpo.inSampleSize=2; b=BitmapFactory.decodeStream(inputStream, null,bpo ); return b; } catch (IOException e) { throw new RuntimeException(e); } } } Here is what logcat is showing... 04-23 16:02:02.211: ERROR/completed(1450): completed 04-23 16:02:02.211: ERROR/paths values(1450): [] 04-23 16:02:02.211: DEBUG/*****(1450): handler 04-23 16:02:02.211: DEBUG/AndroidRuntime(1450): Shutting down VM 04-23 16:02:02.211: WARN/dalvikvm(1450): threadid=3: thread exiting with uncaught exception (group=0x4001aa28) 04-23 16:02:02.222: ERROR/AndroidRuntime(1450): Uncaught handler: thread main exiting due to uncaught exception 04-23 16:02:02.241: DEBUG/webObjectList(1450): webObjectList 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): java.lang.NullPointerException 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at com.stellent.gorinka.MusicListActivity$2.handleMessage(MusicListActivity.java:81) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at android.os.Handler.dispatchMessage(Handler.java:99) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at android.os.Looper.loop(Looper.java:123) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at android.app.ActivityThread.main(ActivityThread.java:4203) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at java.lang.reflect.Method.invokeNative(Native Method) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at java.lang.reflect.Method.invoke(Method.java:521) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 04-23 16:02:02.252: ERROR/AndroidRuntime(1450): at dalvik.system.NativeStart.main(Native Method) I have declared the getter and setter methods in a seperate claa named SongsList. Plz help me determine the problem...

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  • Convert Decimal to ASCII

    - by Dan Snyder
    I'm having difficulty using reinterpret_cast. Before I show you my code I'll let you know what I'm trying to do. I'm trying to get a filename from a vector full of data being used by a MIPS I processor I designed. Basically what I do is compile a binary from a test program for my processor, dump all the hex's from the binary into a vector in my c++ program, convert all of those hex's to decimal integers and store them in a DataMemory vector which is the data memory unit for my processor. I also have instruction memory. So When my processor runs a SYSCALL instruction such as "Open File" my C++ operating system emulator receives a pointer to the beginning of the filename in my data memory. So keep in mind that data memory is full of ints, strings, globals, locals, all sorts of stuff. When I'm told where the filename starts I do the following: Convert the whole decimal integer element that is being pointed to to its ASCII character representation, and then search from left to right to see if the string terminates, if not then just load each character consecutively into a "filename" string. Do this until termination of the string in memory and then store filename in a table. My difficulty is generating filename from my memory. Here is an example of what I'm trying to do: C++ Syntax (Toggle Plain Text) 1.Index Vector NewVector ASCII filename 2.0 240faef0 128123792 'abc7' 'a' 3.0 240faef0 128123792 'abc7' 'ab' 4.0 240faef0 128123792 'abc7' 'abc' 5.0 240faef0 128123792 'abc7' 'abc7' 6.1 1234567a 243225 'k2s0' 'abc7k' 7.1 1234567a 243225 'k2s0' 'abc7k2' 8.1 1234567a 243225 'k2s0' 'abc7k2s' 9. //EXIT LOOP// 10.1 1234567a 243225 'k2s0' 'abc7k2s' Index Vector NewVector ASCII filename 0 240faef0 128123792 'abc7' 'a' 0 240faef0 128123792 'abc7' 'ab' 0 240faef0 128123792 'abc7' 'abc' 0 240faef0 128123792 'abc7' 'abc7' 1 1234567a 243225 'k2s0' 'abc7k' 1 1234567a 243225 'k2s0' 'abc7k2' 1 1234567a 243225 'k2s0' 'abc7k2s' //EXIT LOOP// 1 1234567a 243225 'k2s0' 'abc7k2s' Here is the code that I've written so far to get filename (I'm just applying this to element 1000 of my DataMemory vector to test functionality. 1000 is arbitrary.): C++ Syntax (Toggle Plain Text) 1.int i = 0; 2.int step = 1000;//top->a0; 3.string filename; 4.char *temp = reinterpret_cast<char*>( DataMemory[1000] );//convert to char 5.cout << "a0:" << top->a0 << endl;//pointer supplied 6.cout << "Data:" << DataMemory[top->a0] << endl;//my vector at pointed to location 7.cout << "Data(1000):" << DataMemory[1000] << endl;//the element I'm testing 8.cout << "Characters:" << &temp << endl;//my temporary char array 9. 10.while(&temp[i]!=0) 11.{ 12. filename+=temp[i];//add most recent non-terminated character to string 13. i++; 14. if(i==4)//when 4 chatacters have been added.. 15. { 16. i=0; 17. step+=1;//restart loop at the next element in DataMemory 18. temp = reinterpret_cast<char*>( DataMemory[step] ); 19. } 20. } 21. cout << "Filename:" << filename << endl; int i = 0; int step = 1000;//top-a0; string filename; char *temp = reinterpret_cast( DataMemory[1000] );//convert to char cout << "a0:" << top-a0 << endl;//pointer supplied cout << "Data:" << DataMemory[top-a0] << endl;//my vector at pointed to location cout << "Data(1000):" << DataMemory[1000] << endl;//the element I'm testing cout << "Characters:" << &temp << endl;//my temporary char array while(&temp[i]!=0) { filename+=temp[i];//add most recent non-terminated character to string i++; if(i==3)//when 4 chatacters have been added.. { i=0; step+=1;//restart loop at the next element in DataMemory temp = reinterpret_cast( DataMemory[step] ); } } cout << "Filename:" << filename << endl; So the issue is that when I do the conversion of my decimal element to a char array I assume that 8 hex #'s will give me 4 characters. Why isn't this this case? Here is my output: C++ Syntax (Toggle Plain Text) 1.a0:0 2.Data:0 3.Data(1000):4428576 4.Characters:0x7fff5fbff128 5.Segmentation fault

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  • Hide cursor in Chrome (and IE)

    - by Chris
    I have the following CSS that hides the mouse cursor for anything on the web page. It works perfectly in FireFox but in IE and and Chrome it doesn't work. html { cursor: none; } In Chrome I always see the mouse pointer. In IE however I see whatever cursor was last 'active' when it entered the screen. Presumably it's keeping the last selection instead of removing it.

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