debug.c

debug.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>


int debug(const char *rule, ...) {
    int ret;
    char *buf;
    time_t result = time(NULL);

    va_list ap;
    va_start(ap, rule);
    vasprintf(&buf, rule, ap);
    ret = fprintf(stderr, "[DEBUG] %s -- %s", buf, asctime(localtime(&result)));
    va_end(ap);

    return ret;
}

int main() {
    debug("%s", "print first");
    return 0;
}