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• Fb.Connect.StreamPublish with images: type 'i' is not allowed.

  - by ssd

  Any ideas on what that error means? I have an attachment media type image with a full URL specified and I am seeing this error.

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• Why is the Objective-C Boolean data type defined as a signed char?

  - by EddieCatflap

  Something that has piqued my interest is Objective-C's BOOL type definition. Why is it defined as a signed char (which could cause unexpected behaviour if a value greater than 1 byte in length is assigned to it) rather than as an int, as C does (much less margin for error: a zero value is false, a non-zero value is true)? The only reason I can think of is the Objective-C designers micro-optimising storage because the char will use less memory than the int. Please can someone enlighten me?

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• Is typeid of type name always evaluated at compile time in c++ ?

  - by cyril42e

  I wanted to check that typeid is evaluated at compile time when used with a type name (ie typeid(int), typeid(std::string)...). To do so, I repeated in a loop the comparison of two typeid calls, and compiled it with optimizations enabled, in order to see if the compiler simplified the loop (by looking at the execution time which is 1us when it simplifies instead of 160ms when it does not). And I get strange results, because sometimes the compiler simplifies the code, and sometimes it does not. I use g++ (I tried different 4.x versions), and here is the program: #include <iostream> #include <typeinfo> #include <time.h> class DisplayData {}; class RobotDisplay: public DisplayData {}; class SensorDisplay: public DisplayData {}; class RobotQt {}; class SensorQt {}; timespec tp1, tp2; const int n = 1000000000; int main() { int avg = 0; clock_gettime(CLOCK_REALTIME, &tp1); for(int i = 0; i < n; ++i) { // if (typeid(RobotQt) == typeid(RobotDisplay)) // (1) compile time // if (typeid(SensorQt) == typeid(SensorDisplay)) // (2) compile time if (typeid(RobotQt) == typeid(RobotDisplay) || typeid(SensorQt) == typeid(SensorDisplay)) // (3) not compile time ???!!! avg++; else avg--; } clock_gettime(CLOCK_REALTIME, &tp2); std::cout << "time (" << avg << "): " << (tp2.tv_sec-tp1.tv_sec)*1000000000+(tp2.tv_nsec-tp1.tv_nsec) << " ns" << std::endl; } The conditions in which this problem appear are not clear, but: - if there is no inheritance involved, no problem (always compile time) - if I do only one comparison, no problem - the problem only appears only with a disjunction of comparisons if all the terms are false So is there something I didn't get with how typeid works (is it always supposed to be evaluated at compilation time when used with type names?) or may this be a gcc bug in evaluation or optimization? About the context, I tracked down the problem to this very simplified example, but my goal is to use typeid with template types (as partial function template specialization is not possible). Thanks for your help!

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• How to find size of a data type in pl/sql (oracle 9i)?

  - by Vineet

  hi, I want to find the size of any data type in pl/sql,for eg DECLARE x boolean; I want to find size of like X,is there any function like (sizeof() in C) or any how i can find it.Please let me know!

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• how to identify the extension/type of the file using C# ?

  - by Anil Namde

  i have a workflow where user is allowed to upload any file and then that file will be read. Now my question is if user have image file xyz.jpg and he renamed it to xyz only (extension removed) in this can we still get the type/extension of the file using/reading files data/metadata. Thanks all

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• Can't get GetModuleFileNameA to work, keep getting error 'missing type specifier...'

  - by flavour404

  Hi, I am trying to use 'GetModuleFileNameA' but I keep getting the error 'c4430: missing type specifier - int assumed'. From reading the results from my google search I am guessing that it is from my use of NULL: char Filename[MAX_PATH]; //this is a char buffer GetModuleFileNameA(NULL, Filename, sizeof(Filename)); NULL is supposedly defined in #include stdio.h which I have included in my project, what am I doing wrong? Thanks.

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• How to add the document library column named "Type (icon linked to document)" into list view?

  - by Sushant

  I am working with a list view. I want a column to have look similar to the document library column named "Type (icon linked to document)" column. I should also be able to set the path this hyperlinked icon should open. I tried a lot with existing site columns but could still not figure out how to do this. Has anyone implemented this earlier. Please share your expertise. Thanks in advance.

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• HTML / CSS How to add image icon to input type="button" ?

  - by Brett

  Hi, I'm using this css, but it puts an image in the center. Any way to left or right align an icon using an input type="button" html button, so that the text and the image fit on the button nicely? background: url('/common/assets/images/icons/16x16/add.png');background-position:center;background-repeat:no-repeat;

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• Does SQL Server CE support synchronization of Spatial Data type?

  - by derrdji

  Does Sql Server support replication to SQL Server CE? In the documentation, SQL server CE seems to be not supporting the st_geometry type.

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• How to make OSX application that just runs opens some file type and runs arbitrary Ruby code?

  - by taw

  It's trivial to make a program executable from shell - just put #!/usr/bin/ruby on top, chmod +x it and done. Unfortunately OSX won't let me associate file type with such scripts - it requires its .apps instead. This sort of distinction doesn't seem to exist on other operating systems. What's the simplest way of making such .app, which would merely execute some arbitrary Ruby code?

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• Problem with C function of type char pointer, can someone explain?

  - by JJ

  Find the errors from following C function : char* f(int i) { int i; char buffer[20]; switch ( i ) { 1: strcpy( buffer, "string1"); 2: strcpy( buffer, "string2"); 3: strcpy( buffer, "string3"); default: strcpy(buffer, "defaultstring"); } return buffer; } this is c funtion not C++, I think it has to do with type conversion my compiler give warning that declaration of int i shadows a parameter.

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• How to find the class object of Java generic type?

  - by Samuel Yung

  Assume I have a generic type P which is an Enum, that is <P extends Enum<P>>, and I want to get the Enum value from a string, for example: String foo = "foo"; P fooEnum = Enum.valueOf(P.class, foo); This will get a compile error because P.class is invalid. So what can I do in order to make the above code work?

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• Do you know of a language with Static Type checking where Code is Data?

  - by asd.and.Rizzo

  Can you name language with Static Type checking(like Java) and where Code is Data(like in LISP)? I mean both things in one language.

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• How to display full documentation of a method as you type in VS?

  - by drasto

  The title is pretty descriptive... Is there any extension that let me see FULL documentation of the method I'm typing ? I would like to see the documentation as I can see it in Object Browser with description of parameters and everything not just some "summary". So what I'd like to see when I type String.Format is: Of cause with an option to see all overrides. It may be part of intelisence or I don't know what it does not really matter.

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• Why Java compiler does not like integer as type for values in HashMap?

  - by Roman

  The compiler complains about this code: HashMap<String,int> userName2ind = new HashMap<String,int>(); for (int i=0; i<=players.length; i++) { userName2ind.put(orderedUserNames[i],i+1); } It writes "unexpected type" and point on int. If I replace int by String and i+1 by i+"1", the compilation goes OK. What is wrong with in here?

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• Find out the number of digits of min/max values of an integral type at compile time

  - by Checkers

  Is there a way to find out the number of digits of min/max values of an integral type at compile time so that it's suitable to be placed as a template parameter? Ideally, there will be an existing solution in, for example, Boost MPL. Failing that I'm looking for some pointers for a hand-coded solution.

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• What data type to use for variable length data (for performance)?

  - by jiewmeng

  What data type should I use for data that can be very short, eg. html link (think twitter), or very long eg. html blog post (think wordpress). I am thinking if I use varchar(4000), it maybe too short for a html formated blog entry? but if I use text, it will take up more space and is less efficient?

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• How to identify the culprit in "Error converting data type varchar to numeric"?

  - by Stan

  An insert statement with a large number of values returns 'Error converting data type varchar to numeric.' How can I find which value actually triggers the error? MS SQL Server 2008 is used.

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• How to cache *any* object type to memory/disk in java?

  - by Blankman

  Is there a generic way to cache any type of object (be in a java class, or a word document etc.) to memory or disk? Is simply serializing the object, and retaining the file extension (if it has one) enough to rebuild the object?

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• How to catch all un-handled exceptions in a .net assembly (library type, not application).

  - by Jules

  Hi, I have an assembly containing a number of classes. This is a class library type assembly, not a windows forms application. It's also single threaded. Is there a way to catch all un-handled exceptions so that I can log them?

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• Where i get the better idea to which type of application base should be in iphone?

  - by Rajendra Bhole

  Hi, I want to develop an application in which i doesn't any idea about how to create my app with which controller class i should i have gave? My application first screen contain TabBarController and i have also inserting UINavigationController. On above scenario i little bit confused which type of controller(confusion in TabBarController, NavigationBarController or simple ViewController ya windows based appliaction) should i take.

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• What Date Source(DS) type and what Round Robin Archive(RRA) should I choose for displaying informati

  - by Kirzilla

  Hello, I want have RRA with one measurement = 5min. period. The Y axis displaying total number (not average) of registrations during last 5 minutes. Also, I want graph with information about total number of registrations (Y axis) per day (X axis). What DS type and RRA "algoritm" shoud I choose to implement this? Thank you

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• How do I Increase cell value in Excel using VBA? Error: Type mismatch

  - by John

  I'm writing a macro, but because I'm working for first time in vb, I faced problems. My code: Cells (1, 1).Select Dim tempvar As Integer tempvar = Val(Selection.Value) // error Selection.Value = tempvar + 1 What my code should be: Cells(1,1).Value+=1 I get error "type mismatch". How do I accomplish that?

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• how to write any custom data type to file using ifstream?

  - by user330731

  as question says, i want to write custom data type data of a class maybe to a file using ifstream in c++. Need help.

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• How to make addition of two columns data for another column where those two columns are type of stri

  - by Harikrishna

  I have datatable and there two column which is type of string and I want to make addition of that two columns data for another column how can I do that ?

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