函数名: brk
功 能: 改变数据段空间分配
用 法: int brk(void *endds);
程序例:
#include <stdio.h>
#include <alloc.h>
int main(void)
{
char *ptr;
printf("Changing allocation with brk()
");
ptr = malloc(1);
printf("Before brk() call: %lu bytes free
", coreleft());
brk(ptr+1000);
printf(" After brk() call: %lu bytes free
", coreleft());
return 0;
}