const-cfstring-1.m   [plain text]

/* APPLE LOCAL file constant cfstrings */
/* Test the -fconstant-cfstrings option for constructing
   compile-time immutable CFStrings, and their interoperation
   with both Cocoa and CoreFoundation.  This will only work
   on MacOS X 10.1.2 and later.  */
/* Developed by Ziemowit Laski <zlaski@apple.com>.  */

/* { dg-do run { target *-*-darwin* } } */
/* { dg-options "-fconstant-cfstrings -framework Cocoa" } */

#import <Foundation/NSString.h>
#import <CoreFoundation/CFString.h>
extern void abort(void);

#ifdef __CONSTANT_CFSTRINGS__
#undef CFSTR
#define CFSTR(STR)  ((CFStringRef) __builtin___CFStringMakeConstantString (STR))
#else
#error The -fconstant-cfstrings option is not functioning properly
#endif

void printOut(NSString *str) {
  NSLog(@"The value of str is: %@", str);
}

void checkNSRange(NSRange r) {
  if (r.location != 6 || r.length != 5) {
    printOut(@"Range check failed");
    abort();
  }
}

void checkCFRange(CFRange r) {
  if (r.location != 6 || r.length != 5) {
    printOut(@"Range check failed");
    abort();
  }
}

int main(void) {
  NSString *s1 = @"Compile-time string literal";
  CFStringRef s2 = CFSTR("Compile-time string literal");
  NSString *s3 = @"Compile-time string literal";
  CFStringRef s4 = CFSTR("Compile-time string literal");

  if (!(s1 == (id)s2 && (id)s2 == s3 && s3 == (id)s4)) {
    NSLog(@"String comparison failed");
    abort ();
  }

  checkNSRange([@"Hello World" rangeOfString:@"World"]);
  checkNSRange([(id)CFSTR("Hello World") rangeOfString:@"World"]);
  checkNSRange([@"Hello World" rangeOfString:(id)CFSTR("World")]);
  checkNSRange([(id)CFSTR("Hello World") rangeOfString:(id)CFSTR("World")]);

  checkCFRange(CFStringFind((CFStringRef)@"Hello World", (CFStringRef)@"World", 0));
  checkCFRange(CFStringFind(CFSTR("Hello World"), (CFStringRef)@"World", 0));
  checkCFRange(CFStringFind((CFStringRef)@"Hello World", CFSTR("World"), 0));
  checkCFRange(CFStringFind(CFSTR("Hello World"), CFSTR("World"), 0));

  return 0;
}