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Cannot Allocate An Array Of Constant Size 0 Visual Studio

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Compilers can do a bunch of optimizations that happen behind the scenes with one of those being a re-arrangement of line codes. 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. How small could an animal be before it is consciously aware of the effects of quantum mechanics? Singular cohomology and birational equivalence Borders table Latex Does The Amazing Lightspeed Horse work, RAW? http://electrictricycle.net/cannot-allocate/cannot-allocate-an-array-of-constant-size-0-php.html

I'm going to go jump off my roof now.The size of a statically allocated array must be constant i'm afraid. This documentation is archived and is not being maintained. Consider the following code in which T is also constant but can wary with every run of the application: #include int main() { double L; std::cin >L; const int T = 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. http://stackoverflow.com/questions/9881777/why-do-i-get-cannot-allocate-an-array-of-constant-size-0

Error C2466

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed So, it appears that the only legal way that a float can make it into an integral constant-expression is as a floating literal converted to an integral or enumeration type. Good question. Well that actually helps a whole lot, thanks! –chris Jan 6 '13 at 20:58 @chris: I don't know of anything that directly states that you can write to the

Reply With Quote February 18th, 2007,02:34 AM #8 StreamKid View Profile View Forum Posts Visit Homepage Junior Member Join Date Oct 2006 Posts 22 Re: error C2466: cannot allocate an array The constant expression for the array size must be an integer greater than zero. The 10'000 year skyscraper What is the total sum of the cardinalities of all subsets of a set? On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack?

C/C++ language proposal: Change the 'case expression' from "integral constant-expression" to "integral expression" Dependent Template Issue? United Kingdom Posts 2,727 Re: error C2466: cannot allocate an array of constant size 0 Originally Posted by StreamKid ok, i'll use vectors... Are 14 and 21 the only "interesting" numbers? anchor I was just goofing around with sorting arrays, blah blah blah.

Does a key signature go before or after a bar line? Creating a game, from start to finish Recent additions How to create a shared library on Linux with GCC - December 30, 2011 Enum classes and nullptr in C++11 - I'm trying to initialize an array to a random size between 1 and 20. Why had Dumbledore accepted Lupin's resignation?

Error C2057: Expected Constant Expression

They are expanded, yes, but not calculated. Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #8 MorphiusFaydal D.I.C Lover Reputation: 43 Posts: 1,376 Joined: 12-May 05 Re: cannot allocate an array of constant Error C2466 No, what you have done is to use macros to restructure your code a bit, after this has been through the pre-processor this is what you'll get: #include int main() { Error 1 Error C2466: Cannot Allocate An Array Of Constant Size 0 The fact that everybody else does it some other way only means that they are wrong" 05-11-2008 #7 Salem View Profile View Forum Posts and the hat of int overfl Join

contact us CodeGuru Home VC++ / MFC / C++ .NET / C# Visual Basic VB Forums Developer.com Register Help Remember Me? this contact form Because T is not constant at compile-time, Huh? Terms Privacy Security Status Help You can't perform that action at this time. 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"); } Thanks... Std::vector

Originally Posted by Adak io.h certainly IS included in some modern compilers. The content you requested has been removed. tia Reply With Quote February 17th, 2007,06:46 AM #4 Paul McKenzie View Profile View Forum Posts Elite Member Power Poster Join Date Apr 1999 Posts 27,449 Re: error C2466: cannot allocate have a peek here And with chars?

In a company crossing multiple timezones, is it rude to send a co-worker a work email in the middle of the night? Thanks for help! Sep 9, 2012 at 9:07pm UTC Peter87 (7824) Use std::vector.

Why didn’t Japan attack the West Coast of the United States during World War II?

Singular cohomology and birational equivalence How can I avoid being chastised for a project I inherited which was already buggy, but I was told to add features instead of fixing it? The program is compiled as C. They are expanded, yes, but not calculated. in g++ and devcpp it compiles...

tia There is nothing wrong with Visual Studio. How can I declare independence from the United States and start my own micro nation? No new replies allowed. Check This Out asked 3 years ago viewed 5809 times active 3 years ago Visit Chat Linked 15 C++ array size dependent on function parameter causes compile errors Related 3472How to remove a particular

I'm assuming you've placed it there to hold an execution window open? Why didn’t Japan attack the West Coast of the United States during World War II? Does a key signature go before or after a bar line? Already have an account?

Why does Friedberg say that the role of the determinant is less central than in former times? C/C++ Building Reference C/C++ Build Errors Compiler Errors C2400 Through C2499 Compiler Errors C2400 Through C2499 Compiler Error C2466 Compiler Error C2466 Compiler Error C2466 Compiler Error C2400 Compiler Error C2401 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 24,541 ...In C? asked 4 years ago viewed 7420 times active 4 years ago Linked 83 What happens if I define a 0-size array in C/C++?