24ad121582
user interface and documentation, and update __cplusplus for C++20. WG21 considers the C++20 standard to be finished (even though it still has some more steps to pass through in the ISO process). The old flag names are accepted for compatibility, as usual, and we still have lots of references to C++2a in comments and identifiers; those can be cleaned up separately.
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
// RUN: %clang_cc1 -std=c++11 %s -verify -Wno-c++14-extensions
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class X0 {
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void explicit_capture() {
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int foo;
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(void)[foo, foo] () {}; // expected-error {{'foo' can appear only once}}
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(void)[this, this] () {}; // expected-error {{'this' can appear only once}}
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(void)[=, foo] () {}; // expected-error {{'&' must precede a capture when}}
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(void)[=, &foo] () {};
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(void)[=, this] () {}; // expected-warning {{C++20 extension}}
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(void)[&, foo] () {};
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(void)[&, &foo] () {}; // expected-error {{'&' cannot precede a capture when}}
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(void)[&, this] () {};
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}
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};
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struct S2 {
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void f(int i);
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void g(int i);
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};
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void S2::f(int i) {
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(void)[&, i]{ };
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(void)[&, &i]{ }; // expected-error{{'&' cannot precede a capture when the capture default is '&'}}
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(void)[=, this]{ }; // expected-warning{{C++20 extension}}
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(void)[=]{ this->g(i); };
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(void)[i, i]{ }; // expected-error{{'i' can appear only once in a capture list}}
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(void)[i(0), i(1)]{ }; // expected-error{{'i' can appear only once in a capture list}}
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(void)[i, i(1)]{ }; // expected-error{{'i' can appear only once in a capture list}}
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(void)[i(0), i]{ }; // expected-error{{'i' can appear only once in a capture list}}
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}
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