FILELINEFUNCTION的宏.docx

__FILE__,__LINE__,FUNCTION__的宏(转载)?? 2010-03-12 16:28:43|??分类：  HYPERLINK /xiaowei_3927577/blog/ \l m=0t=1c=fks_087070087084084069082081081095086083087070084086084068 \o C语言 C语言 |??标签： |字号大中小?订阅 __FILE__,__LINE__,FUNCTION__实现代码跟踪调试（ HYPERLINK /; \t _self linux下c语言编程 ）先看下简单的初始代码：注意其编译运行后的结果。root@xuanfei-desktop:~/cpropram/2# cat global.h //头文件#ifndef CLOBAL_H??????? #define GLOBAL_H??????? #include stdio.h??????? int funca(void);??????? int funcb(void);#endifroot@xuanfei-desktop:~/cpropram/2# cat funca.c //函数a#include global.hint funca(void){printf (this is function\n);return 0;}root@xuanfei-desktop:~/cpropram/2# cat funcb.c //函数b#include global.hint funcb(void){printf (this is function\n);return 0;}root@xuanfei-desktop:~/cpropram/2# gcc -Wall funca.c funcb.c main.c //联合编译root@xuanfei-desktop:~/cpropram/2# ./a.out //运行this is mainthis is  HYPERLINK /; \t _self functionthis is mainthis is functionthis is main相同结果很难让人看出那里出错，下面我们用用 __FILE__,__LINE__,__FUNCTION__加入代码，看看有什么区别吗.把 __FILE__,__LINE__,__FUNCTION__加入到mail.c中root@xuanfei-desktop:~/cpropram/2# cat main.c#include global.hint main(int argc, char **argv){??? printf(%s(%d)-%s: this is main\n,__FILE__,__LINE__,__FUNCTION__);??? funca();??? printf(%s(%d)-%s: this is main\n,__FILE__,__LINE__,__FUNCTION__);??? funcb();??? printf(%s(%d)-%s: this is main\n,__FILE__,__LINE__,__FUNCTION__);??? return 0;}root@xuanfei-desktop:~/cpropram/2# gcc -Wall funca.c funcb.c main.croot@xuanfei-desktop:~/cpropram/2# ./a.outmain.c(4)-main: this is mainthis is functionmain.c(6)-main: this is mainthis is functionmain.c(8)-main: this is main上面的结果main.c(4)-main:this is main 表示在mian.c源代码的第四行main函数里边打印出来的 this is main那样的话就很方便的让程序员对自己的程序进行排错！为了更方便的使用它我们可以通过在global.h代码中进行宏定义root@xuanfei-desktop:~/cpropram/2# cat global.h#ifndef CLOBAL_H??????? #define GLOBAL_H??????? #include stdio.h??????? int funca(void);??????? int funcb(void);??????? #define DEBUGFMT? %s(%d)-%s??????? #d