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// RUN: %clang_cc1 -std=c99 -Wmissing-field-initializers -Wmissing-braces -verify %s
// Tests that using {0} in struct initialization or assignment is supported
struct foo { int x; int y; };
struct bar { struct foo a; struct foo b; };
struct A { int a; };
struct B { struct A a; };
struct C { struct B b; };
struct D { struct C c; int n; };
struct E { short e; };
struct F { struct E e; int n; };
int main(void)
{
struct foo f = { 0 }; // no-warning
struct foo g = { 9 }; // expected-warning {{missing field 'y' initializer}}
struct foo h = { 9, 9 }; // no-warning
struct bar i = { 0 }; // no-warning
struct bar j = { 0, 0 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'b' initializer}}
struct bar k = { { 9, 9 }, { 9, 9 } }; // no-warning
struct bar l = { { 9, 9 }, { 0 } }; // no-warning
struct bar m = { { 0 }, { 0 } }; // no-warning
struct bar n = { { 0 }, { 9, 9 } }; // no-warning
struct bar o = { { 9 }, { 9, 9 } }; // expected-warning {{missing field 'y' initializer}}
struct C p = { 0 }; // no-warning
struct C q = { 9 }; // warning suppressed for struct with single element
struct D r = { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}}
struct F s = { 0 }; // no-warning
struct F t = { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}}
f = (struct foo ) { 0 }; // no-warning
g = (struct foo ) { 9 }; // expected-warning {{missing field 'y' initializer}}
h = (struct foo ) { 9, 9 }; // no-warning
i = (struct bar) { 0 }; // no-warning
j = (struct bar) { 0, 0 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'b' initializer}}
k = (struct bar) { { 9, 9 }, { 9, 9 } }; // no-warning
l = (struct bar) { { 9, 9 }, { 0 } }; // no-warning
m = (struct bar) { { 0 }, { 0 } }; // no-warning
n = (struct bar) { { 0 }, { 9, 9 } }; // no-warning
o = (struct bar) { { 9 }, { 9, 9 } }; // expected-warning {{missing field 'y' initializer}}
p = (struct C) { 0 }; // no-warning
q = (struct C) { 9 }; // warning suppressed for struct with single element
r = (struct D) { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}}
s = (struct F) { 0 }; // no-warning
t = (struct F) { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}}
return 0;
}
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