gcc/testsuite/gcc.dg/shrink-wrap-pretend.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -g" } */
   3
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <stdarg.h>
   7
   8 #define DEBUG_BUFFER_SIZE 80
   9 int unifi_debug = 5;
  10
  11 void
  12 unifi_trace (void* ospriv, int level, const char *fmt, ...)
  13 {
  14    static char s[DEBUG_BUFFER_SIZE];
  15    va_list args;
  16    unsigned int len;
  17
  18    if (!ospriv)
  19      return;
  20
  21    if (unifi_debug >= level)
  22      {
  23        va_start (args, fmt);
  24        len = vsnprintf (&(s)[0], (DEBUG_BUFFER_SIZE), fmt, args);
  25        va_end (args);
  26
  27        if (len >= DEBUG_BUFFER_SIZE)
  28          {
  29            (s)[DEBUG_BUFFER_SIZE - 2] = '\n';
  30            (s)[DEBUG_BUFFER_SIZE - 1] = 0;
  31          }
  32
  33        printf ("%s", s);
  34      }
  35 }
  36