gcc/testsuite/objc.dg/stret-1.m

   1 /* Test for handling of struct-returning methods.  */
   2 /* Contributed by Ziemowit Laski <zlaski@apple.com>.  */
   3 /* { dg-do run } */
   4
   5 #include <objc/Object.h>
   6
   7 extern void abort(void);
   8 #define CHECK_IF(expr) if(!(expr)) abort()
   9
  10 struct astruct {
  11   float a, b;
  12 } globa = { 1.0, 2.0 };
  13
  14 struct bstruct {
  15   float a, b, c, d, e, f;
  16 } globb = { 1, 2, 3, 4, 5, 6 };
  17
  18 @interface foo : Object
  19 - (struct astruct) stret;
  20 - (struct bstruct) stretb;
  21 @end
  22
  23 @implementation foo : Object
  24 - (struct astruct) stret { return globa; }
  25 - (struct bstruct) stretb { return globb; }
  26 @end
  27
  28 @interface bar: foo
  29 - (struct astruct) stret;
  30 - (struct bstruct) stretb;
  31 @end
  32
  33 @implementation bar
  34 - (struct astruct) stret { struct astruct a = [super stret]; a.b = 77; return a; }
  35 - (struct bstruct) stretb { struct bstruct b = [super stretb]; b.e = 99; return b; }
  36 @end
  37
  38 int main(void)
  39 {
  40   foo *obj = [foo new];
  41   bar *obj2 = [bar new];
  42   struct astruct loc, loc2;
  43   struct bstruct locb, locb2;
  44
  45   loc = [obj stret];
  46   CHECK_IF(loc.a == 1.0 && loc.b == 2.0);
  47
  48   locb = [obj stretb];
  49   CHECK_IF(locb.f == 6 && locb.c == 3);
  50   CHECK_IF(locb.e == 5 && locb.b == 2);
  51   CHECK_IF(locb.d == 4 && locb.a == 1);
  52
  53   loc2 = [obj2 stret];
  54   CHECK_IF(loc2.a == 1.0 && loc2.b == 77);
  55
  56   locb2 = [obj2 stretb];
  57   CHECK_IF(locb2.f == 6 && locb2.c == 3);
  58   CHECK_IF(locb2.e == 99 && locb2.b == 2);
  59   CHECK_IF(locb2.d == 4 && locb2.a == 1);
  60
  61   return 0;
  62 }