曲径通幽论坛

标题: malloc [打印本页]

作者: beyes 时间: 2009-4-18 23:51
标题: malloc
滥用内存：

#include <stdlib.h>

#define ONE_K (1024)

int main()
{
    char *some_memory;
    char *scan_ptr;

    some_memory = (char *)malloc(ONE_K);
    if (some_memory == NULL) exit(EXIT_FAILURE);

    scan_ptr = some_memory;
    while(1) {
        *scan_ptr = '\0';
        scan_ptr++;
    }
    exit(EXIT_SUCCESS);
}

说明：上述代码试图写出所分配的内存区域，但这被内核的内存管理器给制止了，所以有以下输出：

beyes@linux-beyes:~/C> ./memory4.exe
段错误

欢迎光临曲径通幽论坛 (http://www.groad.net/bbs/)