gcc/testsuite/obj-c++.dg/const-str-3.mm

   1 /* Test the -fconstant-string-class=Foo option under the NeXT
   2    runtime.  */
   3 /* Developed by Markus Hitter <mah@jump-ing.de>.  */
   4
   5 /* { dg-options "-fconstant-string-class=Foo" } */
   6 /* { dg-do run { target *-*-darwin* } } */
   7 /* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */
   8
   9 #import "../objc-obj-c++-shared/Object1.h"
  10 #import "../objc-obj-c++-shared/next-mapping.h"
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <memory.h>
  14 #include <objc/objc.h>
  15 #ifndef __NEXT_RUNTIME__
  16 #include <objc/objc-api.h>
  17 #endif
  18
  19 @interface Foo: Object {
  20   char *cString;
  21   unsigned int len;
  22 }
  23 - (char *)customString;
  24 @end
  25
  26 #ifdef NEXT_OBJC_USE_NEW_INTERFACE
  27 struct fudge_objc_class _FooClassReference;
  28 #else
  29 struct objc_class _FooClassReference;
  30 #endif
  31
  32 @implementation Foo : Object
  33 - (char *)customString {
  34   return cString;
  35 }
  36 @end
  37
  38 int main () {
  39   Foo *string = @"bla";
  40   Foo *string2 = @"bla";
  41
  42   if(string != string2)
  43     abort();
  44   printf("Strings are being uniqued properly\n");
  45
  46   /* This memcpy has to be done before the first message is sent to a
  47      constant string object. Can't be moved to +initialize since _that_
  48      is already a message. */
  49
  50   memcpy(&_FooClassReference, objc_get_class("Foo"), sizeof(_FooClassReference));
  51   if (strcmp ([string customString], "bla")) {
  52     abort ();
  53   }
  54
  55   printf([@"This is a working constant string object\n" customString]);
  56   return 0;
  57 }
  58 #include "../objc-obj-c++-shared/Object1-implementation.h"