Re: realloc() / free() BYTE* immediately after malloc() fails
attibln wrote:
Hi,
I'm having an odd problem with a project using VisualStudio 2005 Prof.
When I execute the program below I get this message:
Debug Assertion Failed
Program: ...
File: dbgheap.c
Line: 1252
Expression: _CrtIsValidHeapPointer(pUserData)
Consider asking questions about debugging in VC++ in the newsgroup
dedicated to VC++. Take a look at "microsoft.public.vc.*" hierarchy.
---------- START ----------
#include "stdafx.h"
That's a non-standard header. Consider removing it (at least when
posting the code here).
#include <iostream>
using namespace std;
int main( int argc, char * argv[] )
You don't seem to be using 'argc' or 'argv'. Why declare them?
{
unsigned long lU_tile_size = 2956;
// read the tile data (jpeg file) into a buffer
unsigned char * byP_jpeg_file = (unsigned char *)
malloc( lU_tile_size );
'malloc' is undefined. Consider including <cstdlib>.
if( byP_jpeg_file == NULL )
{
wcout << L"eek - allocating memory failed";
return 1;
}
// PROBLEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEM
realloc( byP_jpeg_file , 0 );
'realloc' is undefined. Consider including <cstdlib>.
The behaviour of 'realloc' with 'size' passed as 0 is implementation
defined. You should consider asking in the newsgroup for your C++
compiler (see above).
return 0;
}
---------- END----------
VS2005 settings:
win32 command line executable
ATL is linked statically
Multithreaded-Debug (/MTd)
runtime checking: both
optimisation is turned off (/Od)
Please help!
~ Attila
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask