09 2016 档案

[C] how to use Union ?
摘要：// <![CDATA[ #include <stdio.h> #include <stdlib.h> typedef union data { unsigned long vi; double vd; } data; void main() { data a; a.vd = 22.0; print 阅读全文
posted @ 2016-09-27 23:32 jeremyatchina 阅读(144) 评论(0) 推荐(0)
void die(const char *msg)
摘要：void die(const char *msg) { perror(msg); exit(errno); } 阅读全文
posted @ 2016-09-27 19:06 jeremyatchina 阅读(359) 评论(0) 推荐(0)
[C] Re-execute itself from elf file.
摘要：Re-execute itself from elf file. 阅读全文
posted @ 2016-09-27 18:40 jeremyatchina 阅读(253) 评论(0) 推荐(0)