函数名: sbrk

函数名: sbrk
功  能: 改变数据段空间位置
用  法: char *sbrk(int incr);
程序例:

#include <stdio.h>
#include <alloc.h>

int main(void)
{
   printf("Changing allocation with sbrk()/n");
   printf("Before sbrk() call: %lu bytes free/n",
   (unsigned long) coreleft());
   sbrk(1000);
   printf(" After sbrk() call: %lu bytes free/n",
   (unsigned long) coreleft());
   return 0;
}