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Cannot Allocate An Array Of Constant Size 0 C++

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Not the answer you're looking for? I comented my input and my ouput so you guys can see what im using for this program. The constant expression for the array size must be an integer greater than zero. Tested right now with VS2015. http://optimisersonpc.com/cannot-allocate/cannot-allocate-an-array-of-constant-size-0-visual-studio.html

Why do the cars die after removing jumper cables Build me a Brick Wall! This way you can easily keep track of topics that you're interested in. Already have an account? I began learning C++ and I finally managed to write my > first MEX-file but when I'm trying to compile it I have (of course !) > errors. http://stackoverflow.com/questions/9881777/why-do-i-get-cannot-allocate-an-array-of-constant-size-0

Cannot Allocate An Array Of Constant Size 0 C++

However, I keep getting these errors: error C2057: expected constant expression error C2466: cannot allocate an array of constant size 0 error C2133: 'destString' : unknown size I tried to correct error C2057: expected constant expression You cannot allocate an array of unknown size with automatic storage duration in C++. Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #5 Bench D.I.C Lover Reputation: 943 Posts: 2,464 Joined: 20-August 07 Re: cannot allocate an array of constant

  1. I'm trying to initialize an array to a random size between 1 and 20.
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  5. Can we not gain access to the libraries or something? 05-26-2009 #9 Elysia View Profile View Forum Posts C++まいる!Cをこわせ! Join Date Oct 2007 Location Inside my computer Posts 24,550 ...In C?
  6. m4nu3lf added a commit to m4nu3lf/godot that referenced this issue Jun 21, 2016 reduz fixes compilation error on visual studio,
  7. If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
  8. How to react?

Outside of your DOS world, your header file is meaningless. 05-26-2009 #10 matsp View Profile View Forum Posts Kernel hacker Join Date Jul 2007 Location Farncombe, Surrey, England Posts 15,677 Aside Got questions?Get answers. An array declaration with a zero subscript is legal only for a class, structure, or union member and only with Microsoft extensions (/Ze).The following sample generates C2466: Copy // C2466.cpp // In C89 the size of an array must be a constant expression.

share|improve this answer answered Jan 6 '13 at 21:00 Marc Glisse 4,0371931 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Error C2057: Expected Constant Expression c++ c compiler-construction compiler-errors share|improve this question edited Dec 16 '10 at 20:03 Brooks Moses 7,00012149 asked Dec 16 '10 at 6:14 m4design 66321020 3 check that LEN hasn't been Originally Posted by Salem You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much. http://stackoverflow.com/questions/4457978/how-come-the-compiler-thinks-this-variable-isnt-constant But I think you might be on to something as far as tweaking Visual Studio. –Jon Reid Dec 16 '10 at 6:25 1 @Jon : gcc supports C99 and Variable

You can also add a tag to your watch list by searching for the tag with the directive "tag:tag_name" where tag_name is the name of the tag you would like to This post has been edited by Bench: 22 August 2007 - 03:52 AM Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #11 Xing D.I.C Addict Reputation: It was submitted for C++ 11, but ultimately declined.) share|improve this answer edited Mar 27 '12 at 16:43 answered Mar 27 '12 at 0:31 Ed S. 87k13132199 oh now what does it mean by "used to" in the context below?

Error C2057: Expected Constant Expression

This post has been edited by skyhawk133: 21 August 2007 - 05:48 PM Is This A Good Question/Topic? 0 Back to top MultiQuote Quote + Reply Replies To: cannot allocate an http://www.cplusplus.com/forum/beginner/28082/ I must be too tired or something. #include #include int main(void) { srand((unsigned)time(NULL)); int iRand_Num = rand()%20+1; int iArray[iRand_Num] = {0}; system("pause"); } Errors: ------ Build started: Project: Sort Cannot Allocate An Array Of Constant Size 0 C++ Why is (a % 256) different than (a & 0xFF)? Error 1 Error C2466: Cannot Allocate An Array Of Constant Size 0 Join them; it only takes a minute: Sign up cannot allocate an array of constant size 0 up vote 0 down vote favorite int len = GetWindowTextLengthW(hwndEdit) + 1; wchar_t text[len];

Newsgroup content is distributed by servers hosted by various organizations on the Internet. http://optimisersonpc.com/cannot-allocate/tar-cannot-read-cannot-allocate-memory.html My problem is a very simple one: > I have my Matlab code where I declared some variables, like e.g. My problem is a very simple one: I have my Matlab code where I declared some variables, like e.g. const qualified variables are not constants in C. Std::vector

contact us Register Remember Me? But a fair point. –Brooks Moses Dec 16 '10 at 20:02 add a comment| up vote 2 down vote You could also use int main() { enum { LEN = 5 Search To add search criteria to your watch list, search for the desired term in the search box. this contact form C++ Information Tutorials Reference Articles Forum Forum BeginnersWindows ProgrammingUNIX/Linux ProgrammingGeneral C++ ProgrammingLoungeJobs Home page | Privacy policy© cplusplus.com, 2000-2016 - All rights reserved - v3.1Spotted an error?

How to react? When I declare n and len locally in myfunc as > constants the compilation is done but when writing the mex file with n and > len declared in my Matlab That happened to me once. –Sergey Tachenov Dec 16 '10 at 6:36 | show 1 more comment Your Answer draft saved draft discarded Sign up or log in Sign up

Originally Posted by Adak io.h certainly IS included in some modern compilers.

stdarg and printf() in C Should I allow my child to make an alternate meal if they do not like anything served at mealtime? a lot. Note that there is a gcc extension to allow this, but not in VS (and it is not standard C++. Also, is that actually your entire code, or are headers being #included as well?

I respect your ambition! I'm a great fan of passing in the destination storage. Reference Sheets Code Snippets C Snippets C++ Snippets Java Snippets Visual Basic Snippets C# Snippets VB.NET Snippets ASP.NET Snippets PHP Snippets Python Snippets Ruby Snippets ColdFusion Snippets SQL Snippets Assembly Snippets http://optimisersonpc.com/cannot-allocate/cannot-allocate-memory-java.html And see what happens cause i wanna see the input problem too .

From this C function, // simply call the C++ application function, above. //-------------------------------------------------------------- void mexFunction( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[] ) { temp65(nlhs, plhs, nrhs, prhs); } Do humans have an ethical obligation to prevent animal on animal violence? Quick Navigation C Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums General Programming Boards C++ Programming C Programming C# Programming Game Programming Networking/Device Communication Originally Posted by Adak io.h certainly IS included in some modern compilers.

Terms Privacy Security Status Help You can't perform that action at this time. Toggle Main Navigation Log In Products Solutions Academia Support Community Events Contact Us How To Buy Contact Us How To Buy Log In Products Solutions Academia Support Community Events Search Newsgroup I imagine it's going to be used as the buffer for GetWindowText, and std::wstring can't do that directly. –chris Jan 6 '13 at 20:53 @chris: good point. –Andy Prowl I must be too tired or something. #include #include int main(void) { srand((unsigned)time(NULL)); int iRand_Num = rand()%20+1; int iArray[iRand_Num] = {0}; system("pause"); } C++ doesn't support VLA's.

How do I read or post to the newsgroups? c++ arrays visual-studio-2010 share|improve this question asked Jan 6 '13 at 20:49 Gladstone Asder 1381310 3 That is not valid C++ –DCoder Jan 6 '13 at 20:51 zetcode.com/gui/winapi/controls Powered by vBulletin Version 4.2.3 Copyright © 2016 vBulletin Solutions, Inc. Generating Random Numbers - The C++ Way Hello World: Your first C and C++ Programs Network programming under UNIX Implementation Inheritance Change Theme in Code::Blocks A New Webcam Api Tutorial in

We appreciate your feedback. Sep 1, 2010 at 7:46pm UTC Looy (4) Thats basically it, its just a long list of Arrays (no main function). Ballpark salary equivalent today of "healthcare benefits" in the US? Most likely, the string will be overwritten by the call to the next function.

Join them; it only takes a minute: Sign up How come the compiler thinks this variable isn't constant? There is already something that you ask for - in C++, and it's vector. I'm working with a non-standard library so things may look odd. 1
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#include "SkyGame.h" using namespace C4; float densityList[2]; densityList[kGas] = 6.0F; densityList[kSolid] = 13.0F; unsigned long resFoodMinList[2]; unsigned long resFoodMaxList[2]; GCC may still have given a warning check your logs ;)it would be interesting to know (1-3/3) Loading...

How to decline a postdoc interview if there is some possible future collaboration? You cannot use 0 for array size and you MUST use a constant expression (as in, NOT a variable) for array size.

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