c/c++打印文件名、行号和彩色

源码：
打印的头文件， debug.h

#ifndef __DEBUG_H__
#define __DEBUG_H__

#include <stdio.h>

extern int common_printf(FILE * fp, const int level, const char * file,
                  const int line, const char * func, const char * fmt, ...);

/* 打印等级 0-4 */
#define PRINT_LEVEL             4

/* 提供4个打印接口 DEBUG, INFO, WARN, ERROR */
#define LEVEL_DEBUG             4
#define LEVEL_INFO              3
#define LEVEL_WARN              2
#define LEVEL_ERROR             1

#if (PRINT_LEVEL >= LEVEL_DEBUG)
#define DEBUG(fmt, ...) \
    common_printf(stdout, LEVEL_DEBUG, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__);
#else
#define DEBUG(fmt, ...)
#endif

#if (PRINT_LEVEL >= LEVEL_INFO)
#define INFO(fmt, ...) \
    common_printf(stdout, LEVEL_INFO, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__);
#else
#define INFO(fmt, ...)
#endif

#if (PRINT_LEVEL >= LEVEL_WARN)
#define WARN(fmt, ...) \
    common_printf(stdout, LEVEL_WARN, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__);
#else
#define WARN(fmt, ...)
#endif

#if (PRINT_LEVEL >= LEVEL_ERROR)
#define ERROR(fmt, ...) \
    common_printf(stdout, LEVEL_ERROR, __FILE__, __LINE__, __func__, fmt, ##__VA_ARGS__);
#else
#define ERROR(fmt, ...)
#endif

#endif

打印的源文件，debug.c

#include <stdio.h>
#include <sys/time.h>
#include <time.h>
#include <stdarg.h>
#include "debug.h"

#define ANSI_COLOR_RED "\x1b[1;31m"
#define ANSI_COLOR_GREEN "\x1b[1;32m"
#define ANSI_COLOR_YELLOW "\x1b[1;33m"
#define ANSI_COLOR_PURPLE       "\x1b[1;35m"
#define ANSI_COLOR_CYAN      "\x1b[29m"
#define ANSI_COLOR_CYAN_LESS "\x1b[29m"
#define ANSI_COLOR_RESET      "\x1b[0m"

#define PRINT_DEBUG          "DEBUG"
#define PRINT_INFO               "INFO"
#define PRINT_WARN               "WARN"
#define PRINT_ERROR          "ERROR"

#define PRINT_LEN 10240

static void _common_printf(FILE * fp, const char * time_cl, const char * type_cl,
                                   const char * func_cl, const char * content_cl,
                                    const char * level, const char * file,
                                    const int line, const char * func, const char * fmt)
{
    struct timeval tv;
    gettimeofday(&tv, NULL);
    char datestr[20];
    struct tm tm;
    time_t timesec = tv.tv_sec;
    localtime_r(&timesec, &tm);
    strftime(datestr, sizeof(datestr), "%Y-%m-%d %H:%M:%S", &tm);
    fprintf(fp, "%s" "%s.%06ld " ANSI_COLOR_RESET
                "%s" "[%-05s]" ANSI_COLOR_RESET
                "%s" "[%s, %4d][%-10s] " ANSI_COLOR_RESET
                "%s" "%s" ANSI_COLOR_RESET,
                time_cl, datestr, tv.tv_usec, type_cl,
                level, func_cl, file, line, func, content_cl, fmt);
    fflush(fp);
}

int common_printf(FILE * fp, const int level, const char * file,
                         const int line, const char * func, const char * fmt, ...)
{
    int i;
    char buf[PRINT_LEN];

    va_list args;
    va_start(args, fmt);
    i = vsnprintf(buf, PRINT_LEN, fmt, args);
    va_end(args);

    switch (level) {
        case LEVEL_DEBUG:
                _common_printf(fp, ANSI_COLOR_CYAN_LESS, ANSI_COLOR_GREEN,
                               ANSI_COLOR_CYAN, ANSI_COLOR_GREEN,
                               PRINT_DEBUG, file, line, func, buf);
                break;

        case LEVEL_INFO:
                _common_printf(fp, ANSI_COLOR_CYAN_LESS, ANSI_COLOR_YELLOW,
                               ANSI_COLOR_CYAN, ANSI_COLOR_YELLOW,
                               PRINT_INFO, file, line, func, buf);
                break;

        case LEVEL_WARN:
                _common_printf(fp, ANSI_COLOR_CYAN_LESS, ANSI_COLOR_PURPLE,
                               ANSI_COLOR_CYAN, ANSI_COLOR_PURPLE,
                               PRINT_WARN, file, line, func, buf);
                break;
        case LEVEL_ERROR:
                _common_printf(fp, ANSI_COLOR_CYAN_LESS, ANSI_COLOR_RED,
                               ANSI_COLOR_CYAN, ANSI_COLOR_RED,
                               PRINT_ERROR, file, line, func, buf);
                break;
        default:
                break;
    }

    return i;
}

测试程序，test.c

#include "debug.h"

int main(int argc, char *argv[])
{
    int i ;
    i = DEBUG("hahaha\n");
    printf("==> buf_len [%d]\n", i);
    INFO("hahaha\n");
    WARN("hahaha\n");
    ERROR("hahaha\n");
    return 0;
}

结果：

[root@localhost test]# gcc -o main test.c debug.c
[root@localhost test]# ./main
2017-04-20 11:31:08.307846 [DEBUG][test.c,  6][main ] hahaha
==> buf_len [7]
2017-04-20 11:31:08.308034 [INFO ][test.c,  8][main ] hahaha
2017-04-20 11:31:08.308044 [WARN ][test.c,  9][main ] hahaha
2017-04-20 11:31:08.308061 [ERROR][test.c, 10][main ] hahaha