#include<stdio.h>

#include<stdarg.h>

#define LOG_NONE          (-1)

#define LOG_ERROR          0

#define LOG_WARNING        1

#define LOG_INFO           2

#define LOG_DEBUG          3

void sky_log( const char *name, int i_level, const char *fmt, ... )

{

    char *s_level;

    switch( i_level )

    {

        case LOG_ERROR:

            s_level = "error";

            break;

        case LOG_WARNING:

            s_level = "warning";

            break;

        case LOG_INFO:

            s_level = "info";

            break;

        case LOG_DEBUG:

            s_level = "debug";

            break;

        default:

            s_level = "unknown";

            break;

    }

    //将格式化的内容先输出到缓冲区中

    fprintf(stderr, "%s [%s]: ", name, s_level);

    var_list var;

    va_start(var, fmt);

    vfprintf(stderr,fmt, arg);

    va_end(var);

}

int main()

{

    const char * test = "test";

    sky_log("sky", 0, "hello vfprintf %s", test);

    return 1;

}

 

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