c语言宏不能传递参数,C语言 如何在宏定义中使用可变参数

有一个记录日志的函数,想用宏定义进行包装，简化调用方法，但是xlc报如下的错误：void _log(const int level, char* file, int line, const char* fmt, ...){

va_list ap;

int count;

time_t t;

struct tm* st;

char str_time[255];

memset(str_time, 0x00, sizeof(str_time));

time(&t);

st= localtime(&t);

switch(level){

case DEBUG:

fprintf(stdout, "[DEBUG]");

break;

case INFO:

fprintf(stdout, "[INFO]");

break;

case WARNING:

fprintf(stdout, "[WARNING]");

break;

case ERROR:

fprintf(stdout, "[ERROR]");

break;

default:

fprintf(stdout, "[INFO]");

break;

}

strftime( str_time, sizeof(str_time), "%Y-%m-%d %H:%M:%S", st);

fprintf(stdout, "[%s] LINE:[%04d] [%s] ", file, line, str_time);

va_start(ap, fmt);

count = vfprintf(stdout, fmt, ap);

fprintf(stdout, "\n");

fflush(stdout);

va_end(ap);

}

#define log_info(...) _log((INFO), (__FILE__), (__LINE__), "", (#__VA_ARGS__))

#define log_err(...) _log((ERROR), (__FILE__), (__LINE__), "", (#__VA_ARGS__))Syntax error at line 71, column 18, file RProCrminfo.cp:

Error at line 71, column 18 in file RProCrminfo.cpdefine log_info((aaa), ...) _log((INFO), (__FILE__), (__LINE__), "", (#__VA_ARG

S__))

.................1

PCC-S-02014, Encountered the symbol "(" when expecting one of the following:

) ... an identifier, define, elif, else, endif, error, if,

ifdef, ifndef, include, line, pragma, undef, exec, sql,

begin, end, var, type, oracle,

an immediate preprocessor command, a C token, create,

function, package, procedure, trigger, or, replace,

The symbol ")" was substituted for "(" to continue.