compiler-rt/test/asan/TestCases/printf-1.c

   1 // RUN: %clang_asan -O2 %s -o %t
   2 // RUN: %env_asan_opts=check_printf=1 %run %t 2>&1 | FileCheck %s
   3 // RUN: %env_asan_opts=check_printf=0 %run %t 2>&1 | FileCheck %s
   4 // RUN: %run %t 2>&1 | FileCheck %s
   5
   6 #include <stdio.h>
   7 #if defined(_WIN32)
   8 # define snprintf _snprintf
   9 #endif
  10
  11 int main() {
  12   volatile char c = '0';
  13   volatile int x = 12;
  14   volatile float f = 1.239;
  15   volatile char s[] = "34";
  16   // Check that printf works fine under Asan.
  17   printf("%c %d %.3f %s\n", c, x, f, s);
  18   // CHECK: 0 12 1.239 34
  19   // Check that snprintf works fine under Asan.
  20   char buf[4];
  21   snprintf(buf, 1000, "qwe");
  22   printf("%s\n", buf);
  23   // CHECK: qwe
  24   return 0;
  25 }