test/Sema/format-strings-fixit.c

   1 // RUN: cp %s %t
   2 // RUN: %clang_cc1 -pedantic -Wall -fixit %t || true
   3 // RUN: %clang_cc1 -fsyntax-only -pedantic -Wall -Werror %t
   4
   5 /* This is a test of the various code modification hints that are
   6    provided as part of warning or extension diagnostics. All of the
   7    warnings will be fixed by -fixit, and the resulting file should
   8    compile cleanly with -Werror -pedantic. */
   9
  10 int printf(char const *, ...);
  11
  12 void test() {
  13   // Basic types
  14   printf("%s", (int) 123);
  15   printf("abc%0f", "testing testing 123");
  16   printf("%u", (long) -12);
  17   printf("%p", 123);
  18   printf("%c\n", "x");
  19   printf("%c\n", 1.23);
  20
  21   // Larger types
  22   printf("%+.2d", (unsigned long long) 123456);
  23   printf("%1d", (long double) 1.23);
  24
  25   // Flag handling
  26   printf("%0+s", (unsigned) 31337); // 0 flag should stay
  27   printf("%#p", (void *) 0);
  28   printf("% +f", 1.23); // + flag should stay
  29   printf("%0-f", 1.23); // - flag should stay
  30
  31   // Positional arguments
  32   printf("%1$f:%2$.*3$f:%4$.*3$f\n", 1, 2, 3, 4);
  33
  34   // Precision
  35   printf("%10.5d", 1l); // (bug 7394)
  36   printf("%.2c", 'a');
  37
  38   // Ignored flags
  39   printf("%0-f", 1.23);
  40
  41   // Bad length modifiers
  42   printf("%hhs", "foo");
  43   printf("%1$zp", (void *)0);
  44 }