heapcheck
Remonter à Alloc.h - Index
Header File
alloc.h
Category
Memory Routines
Prototype
int heapcheck(void);
Description
Checks and verifies the heap.
heapcheck walks through the heap and examines each block, checking its pointers, size, and other critical attributes.
Return Value
The return value is less than 0 for an error and greater than 0 for success. The return values and their meaning are as follows:
_HEAPCORRUPT |
Heap has been corrupted |
_HEAPEMPTY |
No heap |
_HEAPOK |
Heap is verified |
Example
#include <stdio.h>
#include <alloc.h>
#define NUM_PTRS 10
#define NUM_BYTES 16
int main(void)
{
char *array[ NUM_PTRS ];
int i;
for( i = 0; i < NUM_PTRS; i++ )
array[ i ] = (char *) malloc( NUM_BYTES );
for( i = 0; i < NUM_PTRS; i += 2 )
free( array[ i ] );
if( heapcheck() == _HEAPCORRUPT )
printf( "Heap is corrupted.\n" );
else
printf( "Heap is OK.\n" );
return 0;
}
Portability
POSIX | Win32 | ANSI C | ANSI C++ |
---|---|---|---|
+ |