forked from OSchip/llvm-project
40 lines
915 B
C++
40 lines
915 B
C++
// RUN: %clang_cc1 -std=c++2a -verify %s
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namespace p3 {
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void bar(...);
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template <typename... Args> void foo(Args... args) {
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(void)[... xs = args] {
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bar(xs...);
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};
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}
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void use() {
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foo();
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foo(1);
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}
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}
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template<typename ...T> void f(T ...t) {
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(void)[&...x = t] {
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x; // expected-error {{unexpanded parameter pack 'x'}}
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};
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// Not OK: can't expand 'x' outside its scope.
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weird((void)[&...x = t] {
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return &x; // expected-error {{unexpanded parameter pack 'x'}}
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}... // expected-error {{does not contain any unexpanded}}
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);
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// OK, capture only one 'slice' of 'x'.
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weird((void)[&x = t] {
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return &x;
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}...
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);
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// 'x' is not expanded by the outer '...', but 'T' is.
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weird((void)[&... x = t] {
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return T() + &x; // expected-error {{unexpanded parameter pack 'x'}}
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}... // expected-error {{does not contain any unexpanded}}
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);
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}
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