1  /* Verify that we don't offer names that are reserved for the
       2     implementation (PR c/83236).  */
       3  /* { dg-options "-nostdinc" } */
       4  
       5  /* Example of an identifier with a leading double-underscore.
       6     We shouldn't offer '__ino_t' as a suggestion for an unknown 'ino_t'.  */
       7  
       8  typedef unsigned long int __ino_t;
       9  ino_t inode; /* { dg-error "did you mean 'int'" } */
      10  
      11  
      12  /* Example of a typedef with a leading double-underscore.  */
      13  
      14  typedef unsigned char __u_char;
      15  u_char ch; /* { dg-error "did you mean 'char'" } */
      16  
      17  
      18  /* Example of a macro with a leading double-underscore.  */
      19  
      20  # define __SOME_MACRO	int
      21  
      22  SOME_MACRO foo; /* { dg-bogus "__SOME_MACRO" } */
      23  /* { dg-error "'SOME_MACRO'" "" { target *-*-* } .-1 } */
      24  
      25  
      26  /* If the misspelled name itself matches the "reserved" pattern, then
      27     it's OK to suggest such names.  */
      28  
      29  void test (const char *buf, char ch)
      30  {
      31    __builtin_strtchr (buf, ch); /* { dg-line misspelled_reserved } */
      32    /* { dg-warning "did you mean '__builtin_strchr'" "" { target c } misspelled_reserved } */
      33    /* { dg-error "'__builtin_strtchr' was not declared in this scope; did you mean '__builtin_strrchr'\\?" "" { target c++ } misspelled_reserved } */
      34  }
      35  
      36  /* Similarly for a name that begins with a single underscore.  */
      37  
      38  void test_2 (const char *buf, char ch)
      39  {
      40    _builtin_strchr (buf, ch); /* { dg-line misspelled_one_underscore } */
      41    /* { dg-warning "did you mean '__builtin_strchr'" "" { target c } misspelled_one_underscore } */
      42    /* { dg-error "'_builtin_strchr' was not declared in this scope; did you mean '__builtin_strchr'\\?" "" { target c++ } misspelled_one_underscore } */
      43  }
      44  
      45  /* Verify that we can correct "__FILE_" to "__FILE__".  */
      46  
      47  const char * test_3 (void)
      48  {
      49    return __FILE_; /* { dg-line misspelled__FILE_ } */
      50    /* { dg-error "did you mean '__FILE__'" "" { target c } misspelled__FILE_ } */
      51    /* { dg-error "'__FILE_' was not declared in this scope; did you mean '__FILE__'\\?"  "" { target c++ } misspelled__FILE_ } */
      52  }
      53  
      54  /* Verify that we can correct "__FILE_NAME_" to "__FILE_NAME__".  */
      55  
      56  const char * test_4 (void)
      57  {
      58    return __FILE_NAME_; /* { dg-line misspelled__FILE_NAME_ } */
      59    /* { dg-error "did you mean '__FILE_NAME__'" "" { target c } misspelled__FILE_NAME_ } */
      60    /* { dg-error "'__FILE_NAME_' was not declared in this scope; did you mean '__FILE_NAME__'\\?"  "" { target c++ } misspelled__FILE_NAME_ } */
      61  }
      62  
      63  /* Verify that we can correct "__FILENAME__" to "__FILE_NAME__".  */
      64  
      65  const char * test_5 (void)
      66  {
      67    return __FILENAME__; /* { dg-line misspelled__FILENAME__ } */
      68    /* { dg-error "did you mean '__FILE_NAME__'" "" { target c } misspelled__FILENAME__ } */
      69    /* { dg-error "'__FILENAME__' was not declared in this scope; did you mean '__FILE_NAME__'\\?"  "" { target c++ } misspelled__FILENAME__ } */
      70  }