clang/test/Sema/overloadable-complex.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2 char *foo(float) __attribute__((__overloadable__));
   3
   4 void test_foo_1(float fv, double dv, float _Complex fc, double _Complex dc) {
   5   char *cp1 = foo(fv);
   6   char *cp2 = foo(dv);
   7   // Note: GCC and EDG reject these two, but they are valid C99 conversions
   8   char *cp3 = foo(fc);
   9   char *cp4 = foo(dc);
  10 }
  11
  12 int *foo(float _Complex) __attribute__((__overloadable__));
  13
  14 void test_foo_2(float fv, double dv, float _Complex fc, double _Complex dc) {
  15   char *cp1 = foo(fv);
  16   char *cp2 = foo(dv);
  17   int *ip = foo(fc);
  18   int *lp = foo(dc);
  19 }
  20
  21 long *foo(double _Complex) __attribute__((__overloadable__));
  22
  23 void test_foo_3(float fv, double dv, float _Complex fc, double _Complex dc) {
  24   char *cp1 = foo(fv);
  25   char *cp2 = foo(dv);
  26   int *ip = foo(fc);
  27   long *lp = foo(dc);
  28 }
  29
  30 char *promote_or_convert(double _Complex) __attribute__((__overloadable__));  // expected-note 2 {{candidate function}}
  31 int *promote_or_convert(long double _Complex) __attribute__((__overloadable__)); // expected-note 2 {{candidate function}}
  32
  33 void test_promote_or_convert(float f, float _Complex fc) {
  34   char *cp = promote_or_convert(fc); // expected-error{{call to 'promote_or_convert' is ambiguous}}
  35   int *ip2 = promote_or_convert(f); // expected-error{{call to 'promote_or_convert' is ambiguous}}
  36 }
  37
  38 char *promote_or_convert2(float) __attribute__((__overloadable__));
  39 int *promote_or_convert2(double _Complex) __attribute__((__overloadable__));
  40
  41 void test_promote_or_convert2(float _Complex fc) {
  42   int *cp = promote_or_convert2(fc);
  43 }
  44
  45 char *promote_or_convert3(int _Complex) __attribute__((__overloadable__));
  46 int *promote_or_convert3(long _Complex) __attribute__((__overloadable__));
  47
  48 void test_promote_or_convert3(short _Complex sc) {
  49   char *cp = promote_or_convert3(sc);
  50 }