71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -pedantic -verify=expected,cxx17 -std=c++17 %s
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// RUN: %clang_cc1 -fsyntax-only -pedantic -verify=expected,cxx20 -std=c++2a %s
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// cxx17-warning@* 0+{{designated initializers are a C++20 extension}}
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void f1(int i[static 5]) { // expected-error{{C99}}
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}
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struct Point { int x; int y; int z[]; }; // expected-warning{{flexible array members are a C99 feature}}
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Point p1 = { .x = 17,
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y: 25 }; // expected-warning{{use of GNU old-style field designator extension}}
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Point p2 = {
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.x = 17, // expected-warning {{mixture of designated and non-designated initializers in the same initializer list is a C99 extension}}
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25 // expected-note {{first non-designated initializer}}
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};
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Point p3 = {
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.x = 17, // expected-note {{previous initialization is here}}
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.x = 18, // expected-warning {{initializer overrides prior initialization of this subobject}}
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};
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Point p4 = {
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.x = 17, // expected-warning {{mixture of designated and non-designated initializers in the same initializer list is a C99 extension}}
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25, // expected-note {{first non-designated initializer}}
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// expected-note@-1 {{previous initialization is here}}
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.y = 18, // expected-warning {{initializer overrides prior initialization of this subobject}}
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};
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int arr[1] = {[0] = 0}; // expected-warning {{array designators are a C99 extension}}
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struct Pt { int x, y; };
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struct Rect { Pt tl, br; };
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Rect r = {
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.tl.x = 0 // expected-warning {{nested designators are a C99 extension}}
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};
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struct NonTrivial {
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NonTrivial();
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~NonTrivial();
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};
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struct S {
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int a;
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NonTrivial b;
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};
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struct T {
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S s;
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};
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S f();
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T t1 = {
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.s = f()
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};
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// It's important that we reject this; we would not destroy the existing
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// 'NonTrivial' object before overwriting it (and even calling its destructor
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// would not necessarily be correct).
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T t2 = {
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.s = f(), // expected-note {{previous}}
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.s.b = NonTrivial() // expected-error {{initializer would partially override prior initialization of object of type 'S' with non-trivial destruction}}
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// expected-warning@-1 {{nested}}
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};
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// FIXME: It might be reasonable to accept this.
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T t3 = {
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.s = f(), // expected-note {{previous}}
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.s.a = 0 // expected-error {{initializer would partially override prior initialization of object of type 'S' with non-trivial destruction}}
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// expected-warning@-1 {{nested}}
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};
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