函数名: coreleft
功 能: 返回未使用内存的大小
用 法: unsigned coreleft(void);
程序例:
#include <stdio.h>
#include <alloc.h>
int main(void)
{
printf("The difference between the highest allocated block and
");
printf("the top of the heap is: %lu bytes
", (unsigned long) coreleft());
return 0;
}