gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c

   1 /* PR preprocessor/103026 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wbidi-chars=unpaired,ucn -fdiagnostics-show-caret" } */
   4 /* Verify that we escape and underline pertinent bidirectional
   5    control characters when quoting the source.  */
   6
   7 int test_unpaired_bidi () {
   8     int isAdmin = 0;
   9     /*‮ } ⁦if (isAdmin)⁩ ⁦ begin admins only */
  10 /* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
  11 #if 0
  12    { dg-begin-multiline-output "" }
  13      /*<U+202E> } <U+2066>if (isAdmin)<U+2069> <U+2066> begin admins only */
  14        ~~~~~~~~                                ~~~~~~~~                    ^
  15        |                                       |                           |
  16        |                                       |                           end of bidirectional context
  17        U+202E (RIGHT-TO-LEFT OVERRIDE)         U+2066 (LEFT-TO-RIGHT ISOLATE)
  18    { dg-end-multiline-output "" }
  19 #endif
  20
  21         __builtin_printf("You are an admin.\n");
  22     /* end admins only ‮ { ⁦*/
  23 /* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
  24 #if 0
  25    { dg-begin-multiline-output "" }
  26      /* end admins only <U+202E> { <U+2066>*/
  27                         ~~~~~~~~   ~~~~~~~~ ^
  28                         |          |        |
  29                         |          |        end of bidirectional context
  30                         |          U+2066 (LEFT-TO-RIGHT ISOLATE)
  31                         U+202E (RIGHT-TO-LEFT OVERRIDE)
  32    { dg-end-multiline-output "" }
  33 #endif
  34
  35     return 0;
  36 }
  37
  38 int LRE_‪_PDF_\u202c;
  39 /* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
  40 #if 0
  41    { dg-begin-multiline-output "" }
  42  int LRE_<U+202A>_PDF_\u202c;
  43          ~~~~~~~~     ^~~~~~
  44    { dg-end-multiline-output "" }
  45 #endif
  46
  47 const char *s1 = "LRE_‪_PDF_\u202c";
  48 /* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
  49 #if 0
  50    { dg-begin-multiline-output "" }
  51  const char *s1 = "LRE_<U+202A>_PDF_\u202c";
  52                        ~~~~~~~~     ^~~~~~
  53    { dg-end-multiline-output "" }
  54 #endif