21 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s2 3union u { int i; unsigned : 3; };4void f(union u);5 6void test(int x) {7 f((union u)x); // expected-warning {{cast to union type is a GNU extension}}8 f((union u)&x); // expected-error {{cast to union type from type 'int *' not present in union}}9 f((union u)2U); // expected-error {{cast to union type from type 'unsigned int' not present in union}}10}11 12union u w = (union u)2; // expected-warning {{cast to union type is a GNU extension}}13union u ww = (union u)1.0; // expected-error{{cast to union type from type 'double' not present in union}}14union u x = 7; // expected-error{{initializing 'union u' with an expression of incompatible type 'int'}}15int i;16union u zz = (union u)i; // expected-error{{initializer element is not a compile-time constant}} expected-warning {{cast to union type is a GNU extension}}17 18struct s {int a, b;};19struct s y = { 1, 5 };20struct s z = (struct s){ 1, 5 };21