Can anyone help?
Listed below is some code(Microsoft Visual C++)
It calc's the maximum allocation
that succeeds.  Why does it only return 255 Mb?
Can anyone tell me how to allocate 600Mb
(Need for large image processing) ?

#include <stdio.h>
#include <malloc.h>

// windows 95
// swap file min 512Mb max 1019Mb
// free space 1019Mb
// maximum allocation that succeeds is 255 Mb
// WHY WHY WHY
void main()
{
    unsigned int size;
    char *buff;
    size = 2048;
    buff = NULL;
    while (buff == NULL)
    {
        size -= 1;
        printf ("try allocation of %d Mb\n", size);
        buff = (char *) malloc(size * 1024 * 1024);
    }
    if (buff)
    {
        printf ("largest allocation is %d Mb\n", size);
        printf ("freeing allocation\n", size);
        free (buff);
    }
    else
    {
        printf ("no allocations succeded\n");
    }

Hi Murrae,

You get a better result when you change your variable "size" to long
int.