c++ - passing variable parameter list to syslog -

i try pass variable parameter list function. there similary question: how pass variable number of arguments printf/sprintf me doesn't work. , don't know why. function:

void printsyslognotice(const char *fmt, ...) {       va_list ap;       va_start(ap, fmt);       #ifdef __xeno__          rt_syslog(log_notice, fmt, ap);       #else          syslog(log_notice, fmt, ap);       #endif       va_end(ap); } 

when call with:

printsyslognotice("%s %i", "hello world", 5); 

i output: #010 -939524064

needless say, output: hello world 5

does has idea?

you should use vsyslog, not syslog. syslog receives variable parameters pack, not va_list. if want call syslog should pass arguments is, not va_list.