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  • I asked a question about arrays before, but this one won't compile

    - by unit
    I asked about this array a little while ago, and I can't see what the problem is. Too tired. What have I done wrong? Basically, I am taking a string array and trying to check to see if it contains numbers or an x (ISBN number validation). I want to take the number from a given input (bookNum), check the input, and feed any valid input into a new array (book). At the line 'bookNum.charAt[j]==book[i]' I get the 'not a statement error'. What gives? String[] book = new String [ISBN_NUM]; bookNum.replaceAll("-",""); if (bookNum.length()!=ISBN_NUM) throw new ISBNException ("ISBN "+ bookNum + " must be 10 characters"); for (int i=0;i<bookNum.length();i++) { if (Character.isDigit(bookNum.charAt(i))) bookNum.CharAt[j]==book[i]; j++; if (book[9].isNotDigit()|| book[9]!="x" || book[9]!="X") throw new ISBNException ("ISBN " + bookNum + " must contain all digits" + "or 'X' in the last position");

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  • Retrieving Relationships from within two arrays of pointers

    - by DanF
    In a portion of a program I'm working on, I need to count all the times each person has worked on projects with each other person. Let's say we have "Employee" entities and "Session" entities. In each session, there are four project types, "A", "B", "C", & "D", each a many-to-many relationship to Employees. I'm making a loop to systematically review every person a selected person has worked with. First, I put all their project types in a single array, so it's easier to loop through, but by the time I ask the last nested Project for its Employee members, I get an "unrecognized selector" error. IBOutlet NSArrayController * list; int x; for(x = 0; x < [list count]; x++){ NSArray *A = [[list objectAtIndex:x] valueForKey:@"projectAs"]; NSArray *A = [[list objectAtIndex:x] valueForKey:@"projectBs"]; NSArray *A = [[list objectAtIndex:x] valueForKey:@"projectCs"]; NSArray *A = [[list objectAtIndex:x] valueForKey:@"projectDs"]; NSArray *masterList = [[NSArray alloc] initWithObjects: projectAs, projectBs, projectCs, projectDs, nil]; int y; for(y = 0; y < [masterList count]; y++){ int z; for(z = 0; z < [[masterlist objectAtIndex:y] count]; z++){ //And now to make an Array of this employee's partners on the selected object, to run comparisons on. //I also have an array of keys for each session's teams, so that's what I'm referencing here: NSArray * thisTeam = [list objectAtIndex:y] objectAtIndex:z] valueForKey:projectKey]; This throws an exception... namely, -[_NSFaultingMutableSet objectAtIndex:]: unrecognized selector sent to instance What's wrong with that last Array creation?

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  • Can anyone help with this (Javascript arrays)?

    - by Rich
    Hi I am new to Netui and Javascript so go easy on me please. I have a form that is populated with container.item data retuned from a database. I am adding a checkbox beside each repeater item returned and I want to add the container item data to an array when one of the checkboxes is checked for future processing. The old code used Anchor tag to capture the data but that does not work for me. <!--netui:parameter name="lineupNo" value="{container.item.lineupIdent.lineupNo}" /> here is my checkbox that is a repeater. <netui:checkBox dataSource="{pageFlow.checkIsSelected}" onClick="checkBoxClicked()" tagId="pceChecked"/> this is my Javascript function so far but I want to a way to store the container.item.lineupIdent.lineupNo in the array. function checkBoxClicked() { var checkedPce = []; var elem = document.getElementById("PceList").elements; for (var i = 0; i < elem.length; i ++) { if (elem[i].name == netui_names.pceChecked) { if (elem[i].checked == true) { //do some code. } } } } I hope this is enough info for someone to help me. I have searched the web but could not find any examples. Thanks.

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  • Searching Arrays, array_search() issue

    - by Mikey1980
    Is there any way I can search an array for a value and return it's key, I tried array_search() with no success... below is an example of my array [0] = Array ( [value] = [text] = All Call Types ) [1] => Array ( [value] => enquiry [text] => Renovation Enquiry ) [2] => Array ( [value] => msg [text] => Message to Pass on ) ... My ultimate goal is to convert value to text. Here's what I tried: $key = array_search($row['call_type'], $type_list); $call_type_name = $type_list[$key]['text']; Thanks!

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  • Can a programming language without arrays be turing-complete?

    - by Ring
    My question is simple: There are no arrays possible. That means you can address variables only "statically" by directly using their unique name. (This already throws out the default array syntax variable[ index ] and variable variables) "Emulated arrays" are counted as arrays and excluded too. Examples: You could basically simulate arrays using strings (quite easily actually) or use variable variables as in PHP. Can such a language be turing-complete? Brainf*ck for example has arrays, in fact it is one big array, isn't it?

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  • list arrays in Drupal form

    - by bert
    Is there a better way to find all form elements in a Drupal form than doing a print_r($form)? This dumps excessive amount of information and it is no obvious what to look for.

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  • ActionScript arrays being automatically set to other values

    - by nababa
    I am making a flash game, in each round, the player will chose either True or False. The decision of each round will be stored in an array. That is, it looks like {true, false, true, false}.. When the user clicks the "Debrief“ button, the eventlistener will be called and the game will go to the debriefing part. It will read the array mentioned before. However, the array values are all "false". I am very sure that the array has not being touched in between. So, any ideas about why the array is set to false mysteriously?

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  • Nested loop traversing arrays

    - by alecco
    There are 2 very big series of elements, the second 100 times bigger than the first. For each element of the first series, there are 0 or more elements on the second series. This can be traversed and processed with 2 nested loops. But the unpredictability of the amount of matching elements for each member of the first array makes things very, very slow. The actual processing of the 2nd series of elements involves logical and (&) and a population count. I couldn't find good optimizations using C but I am considering doing inline asm, doing rep* mov* or similar for each element of the first series and then doing the batch processing of the matching bytes of the second series, perhaps in buffers of 1MB or something. But the code would be get quite messy. Does anybody know of a better way? C preferred but x86 ASM OK too. Many thanks! Sample/demo code with simplified problem, first series are "people" and second series are "events", for clarity's sake. (the original problem is actually 100m and 10,000m entries!) #include <stdio.h> #include <stdint.h> #define PEOPLE 1000000 // 1m struct Person { uint8_t age; // Filtering condition uint8_t cnt; // Number of events for this person in E } P[PEOPLE]; // Each has 0 or more bytes with bit flags #define EVENTS 100000000 // 100m uint8_t P1[EVENTS]; // Property 1 flags uint8_t P2[EVENTS]; // Property 2 flags void init_arrays() { for (int i = 0; i < PEOPLE; i++) { // just some stuff P[i].age = i & 0x07; P[i].cnt = i % 220; // assert( sum < EVENTS ); } for (int i = 0; i < EVENTS; i++) { P1[i] = i % 7; // just some stuff P2[i] = i % 9; // just some other stuff } } int main(int argc, char *argv[]) { uint64_t sum = 0, fcur = 0; int age_filter = 7; // just some init_arrays(); // Init P, P1, P2 for (int64_t p = 0; p < PEOPLE ; p++) if (P[p].age < age_filter) for (int64_t e = 0; e < P[p].cnt ; e++, fcur++) sum += __builtin_popcount( P1[fcur] & P2[fcur] ); else fcur += P[p].cnt; // skip this person's events printf("(dummy %ld %ld)\n", sum, fcur ); return 0; } gcc -O5 -march=native -std=c99 test.c -o test

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  • Allocating 32-bit integer arrays in 64-bit machines

    - by Shredderroy
    I have a 64-bit i7 machine. Suppose I allocate memory for n 32-bit integers. How many physical registers will actually be used in the allocation: n, or n/2? I tried to write the following simple programme to find out. #include <iostream> #include <cstdlib> using namespace std; int main (int argc, char *argv[]) { int a[4]; cout << &a[0] << "\t" << &a[3] << endl; cin.ignore (1); return 0; } // End main () The output is: 0018FA04 0018FA10 They seem further apart than they should be. Why aren't the addresses 04 and 07? And does this mean that the system is actually allocating four (or more) integers, instead of packing the four 32-bit integers into two 64-bit registers? Thanks in advance for your help.

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  • sorting char* arrays

    - by skazhy
    Hi! I have a datastructure struct record { char cont[bufferSize]; record *next; }; When I add new records to this structure, I want them to be sorted alphabetically. I made this function, that adds record in the right place (by alphabet) in the linked list: record *start=NULL, *p, *x; void recAdd(char*temp) { p = new record; temp[strlen(temp)] = '\0'; for (int j=0;j<bufferSize;j++) p->cont[j] = temp[j]; if (start==NULL) start=p; else { x=start; int c=0; while (recComp(x->cont,p->cont) <= 0 && x->next != NULL) { x=x->next; c++; } if (c == 0) { p->next=start; start=p; } else { x=start; for (int i=0;i<c;i++) x=x->next; p->next=x->next; x->next=p; } } for (int j=0;j<bufferSize;j++) temp[j] = NULL; }; But somehow it doesn't sort things right. What is wrong with my function?

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  • Subplots of multidimensional arrays in Matlab

    - by altes4ia
    I have a 10x10x10 array, z. How do I plot everything in the SAME window so that I would have the 3 plots for z(:,:,1) and below it the three plots for z(:,:,2) etc ? This is what I have so far: for i = 1:10 z=z(:,:,i); figure(i) subplot(1,2,1) surf(z) %code, obtain new array called "new1"... subplot(1,2,2) surf(new1) %code, obtain new array called "new2"... subplot(1,3,3) surf(new2) end;

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  • Removing object/array difference from different arrays [duplicate]

    - by Kay Singian
    This question already has an answer here: remove objects from array by object property 3 answers I have two JavaScript objects: object_1 = [ {'value': '9:00', 'text':'9:00 am', 'eventtime':'09:00:00' }, {'value': '9:30', 'text':'9:30 am', 'eventtime':'09:30:00' }, {'value': '10:00', 'text':'10:00 am', 'eventtime':'10:00:00' }, {'value': '10:30', 'text':'10:30 am', 'eventtime':'10:30:00' }, {'value': '11:00', 'text':'11:00 am', 'eventtime':'11:00:00' }, {'value': '11:30', 'text':'11:30 am', 'eventtime':'11:30:00' }, ]; object_2 = [ {'eventtime': '10:30:00'}, {'eventtime': '11:00:00'} ]; I want to remove the object in object_1 which has the same eventtime value and store it in a new array/object . Please help me do so, I cant find a solution to this. This will be the new array/object: object_new = [ {'value': '9:00', 'text':'9:00 am', 'eventtime':'09:00:00' }, {'value': '9:30', 'text':'9:30 am', 'eventtime':'09:30:00' }, {'value': '10:00', 'text':'10:00 am', 'eventtime':'10:00:00' }, {'value': '11:30', 'text':'11:30 am', 'eventtime':'11:30:00' }, ];

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  • Struct arrays in C

    - by ThomasTheTankEngine
    Hi I'm having trouble trying to initializing each element of the struct array. When I try and assign the value ZERO to both 'bSize' and 'msgs', it doesn't work as it errors out when i get to malloc. In the printf statement it prints a -1852803823 number. Excuse the messy code as i'm playing around trying to figure it out. struct message{ int *data; int bSize; int msgs; }; int main(int argc, char *argv[]) { ..... } void getSchedFile (FILE *file, int **schd) { struct message sMsg[nodeCount]; const int pakSize = 6; // Iniitialise message buffer for (int i=0; i<nodeCount; i++){ sMsg[i].bSize = 0; sMsg[i].msgs = 0; printf("bSize %d\n",sMsg[i].bSize); } /* Get the number of bytes */ fseek(file, 0L, SEEK_SET); int time; while((fscanf(file, "%d", &time)) != EOF){ int src; fscanf(file, "%d", &src); // get source node id // These are here for easier reading code int aPos = sMsg[src].bSize; int nMsg = sMsg[src].msgs; printf("size %d\n", sMsg[src].bSize); if (sMsg[src].bSize==0){ sMsg[src].data = malloc( pakSize * sizeof(int)); }else{ sMsg[src].data = realloc(sMsg[src].data, (aPos+pakSize)*sizeof(int)); }

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  • Example of [NSDictionary getObjects:andKeys:]

    - by eagle
    I couldn't find a working example of the method [NSDictionary getObjects:andKeys:] on Google. The only link I could find, doesn't compile. I provided the errors/warnings here in case someone is searching for them. The documentation says that it returns a C array. NSDictionary *myDictionary = ...; id objects[]; // Error: Array size missing in 'objects' id keys[]; // Error: Array size missing in 'keys' [myDictionary getObjects:&objects andKeys:&keys]; for (int i = 0; i < count; i++) { id obj = objects[i]; id key = keys[i]; } . NSDictionary *myDictionary = ...; NSInteger count = [myDictionary count]; id objects[count]; id keys[count]; [myDictionary getObjects:&objects andKeys:&keys]; // Warning: Passing argument 1 of 'getObjects:andKeys:' from incompatible pointer type. for (int i = 0; i < count; i++) { id obj = objects[i]; id key = keys[i]; } Please provide a working example of this method.

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  • ASP.NET MVC - Pass array object as a route value within Html.ActionLink(...)

    - by Mike
    I have a method that returns an array (string[]) and I'm trying to pass this array of strings into an Action Link so that it will create a query string similar to: /Controller/Action?str=val1&str=val2&str=val3...etc But when I pass new { str = GetStringArray() } I get the following url: /Controller/Action?str=System.String%5B%5D So basically it's taking my string[] and running .ToString() on it to get the value. Any ideas? Thanks!

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  • Sorting a Multidimensional array...

    - by sologhost
    I need to sort an array that can look like this: $array[4][0] = array('id' => 1, 'value' => 2); $array[3][2] = array('id' => 0, 'value' => 3); $array[4][1] = array('id' => 1, 'value' => 0); $array[1][3] = array('id' => 2, 'value' => 1); $array[1][1] = array('id' => 3, 'value' => 0); $array[3][0] = array('id' => 2, 'value' => 1); $array[3][1] = array('id' => 1, 'value' => 0); $array[1][2] = array('id' => 3, 'value' => 2); $array[1][0] = array('id' => 2, 'value' => 1); $array[2][1] = array('id' => 0, 'value' => 2); $array[2][4] = array('id' => 3, 'value' => 1); But needs to be sorted and returned as this: $array[1][0] = array('id' => 2, 'value' => 1); $array[1][1] = array('id' => 3, 'value' => 0); $array[1][2] = array('id' => 3, 'value' => 2); $array[1][3] = array('id' => 2, 'value' => 1); $array[2][1] = array('id' => 0, 'value' => 2); $array[2][4] = array('id' => 3, 'value' => 1); $array[3][0] = array('id' => 2, 'value' => 1); $array[3][1] = array('id' => 1, 'value' => 0); $array[3][2] = array('id' => 0, 'value' => 3); $array[4][0] = array('id' => 1, 'value' => 2); $array[4][1] = array('id' => 1, 'value' => 0); Can anyone help me? It needs to sort both indexes of the array from lowest to highest index value. Sounds simple enough, but I'm having the hardest time trying to figure this out, while still keeping the values intact. Please help someone...

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  • Looping through an array and calling a function on each pass in v-basic / asp classic

    - by Sam
    How do I loop through an array and call a function on each pass? At the minute I'm trying the following... if Request.Form("authorize") <> "" then dim post_ids, ids post_ids = Request.form("authorize") ids = split(post_ids, ",") For i = LBound(ids) to UBound(ids) set updater = myFunction("comment_id=" & ids(i)) Next end if I'm getting the following error... Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.

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  • Passing an array argument from Excel VBA to a WCF service

    - by PrgTrdr
    I'm trying to pass an array as an argument to my WCF service. To test this using Damian's sample code, I modified GetData it to try to pass an array of ints instead of a single int as an argument: using System; using System.ServiceModel; namespace WcfService1 { [ServiceContract] public interface IService1 { [OperationContract] string GetData(int[] value); [OperationContract] object[] GetSomeObjects(); } } using System; namespace WcfService1 { public class Service1 : IService1 { public string GetData(int[] value) { return string.Format("You entered: {0}", value[0]); } public object[] GetSomeObjects() { return new object[] { "String", 123, 44.55, DateTime.Now }; } } } Excel VBA code: Dim addr As String addr = "service:mexAddress=""net.tcp://localhost:7891/Test/WcfService1/Service1/Mex""," addr = addr + "address=""net.tcp://localhost:7891/Test/WcfService1/Service1/""," addr = addr + "contract=""IService1"", contractNamespace=""http://tempuri.org/""," addr = addr + "binding=""NetTcpBinding_IService1"", bindingNamespace=""http://tempuri.org/""" Dim service1 As Object Set service1 = GetObject(addr) Dim Sectors( 0 to 2 ) as Integer Sectors(0) = 10 MsgBox service1.GetData(Sectors) This code works fine with the WCF Test Client, but when I try to use it from Excel, I have this problem. When Excel gets to the service1.GetData call, it reports the following error: Run-time error '-2147467261 (80004003)' Automation error Invalid Pointer It looks like there is some incompatibility between the interface specification and the VBA call. Have you ever tried to pass an array from VBA into WCF? Am I doing something wrong or is this not supported using the Service moniker?

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  • Java native methods issues with SUN JVM (jdk1.5.0_14) and multi-core CPU’s

    - by Mattias Arnersten
    We are hosting an application on SUN JVM that handles a lot of XML parsing using Jaxb. The application is parsing the XML fine using JRockit 5 but when using the SUN JVM the JVM spends a majority of it’s time on native methods such as java-lang.System.arraycopy, java.lang.String.intern and java.lang.ClassLoader.getPackage. The CPU load is approx. 60% higher when using SUN JVM compared with JRockit. Even stranger is that when we only run the application server using one core (in WMWare) the problem disappears. Has anyone experienced the same behavior? Mattias Arnersten

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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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