1  /* Test whether the __builtin__CFStringMakeConstantString 
       2     "function" fails gracefully when handed a non-constant
       3     argument.  This will only work on MacOS X 10.1.2 and later.  */
       4  /* Developed by Ziemowit Laski <zlaski@apple.com>.  */
       5  
       6  /* { dg-do compile { target *-*-darwin* } } */
       7  /* { dg-options "-mconstant-cfstrings" } */
       8  
       9  typedef const struct __CFString *CFStringRef;
      10  
      11  #ifdef __CONSTANT_CFSTRINGS__
      12  #define CFSTR(STR)  ((CFStringRef) __builtin___CFStringMakeConstantString (STR))
      13  #else
      14  #error __CONSTANT_CFSTRINGS__ not defined
      15  #endif
      16  
      17  extern int cond;
      18  extern const char *func(void);
      19  
      20  const CFStringRef s0 = CFSTR("Hello" "there");
      21  
      22  int main(void) {
      23    CFStringRef s1 = CFSTR("Str1");
      24    CFStringRef s2 = CFSTR(cond? "Str2": "Str3"); /* { dg-error "CFString literal expression is not a string constant" } */
      25    CFStringRef s3 = CFSTR(func());  /* { dg-error "CFString literal expression is not a string constant" } */
      26  
      27    return 0;
      28  }