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This commit implements [temp.deduct]p9. Test updates include: - New notes in `cxx1y-init-captures.cpp`, `lambda-expressions.cpp` and 'warn-unused-lambda-capture.cpp'. This seems to be caused by diagnosing errors earlier (during deduction) that were previously surfaced later (during instantiation). - New error `lambda-unevaluated.cpp` is in line with [temp.deduct]p9. Reviewed By: erichkeane, #clang-language-wg Differential Revision: https://reviews.llvm.org/D148802
33 lines
754 B
C++
33 lines
754 B
C++
// No PCH:
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// RUN: %clang_cc1 -pedantic -std=c++1y -include %s -verify %s
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//
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// With PCH:
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// RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch %s -o %t
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t -verify %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch -fpch-instantiate-templates %s -o %t
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t -verify %s
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#ifndef HEADER
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#define HEADER
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auto counter = [a(0)] () mutable { return a++; };
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int x = counter();
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template<typename T> void f(T t) {
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[t(t)] { int n = t; } ();
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}
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#else
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int y = counter();
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void g() {
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f(0); // ok
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// expected-error@18 {{lvalue of type 'const char *const'}}
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// expected-note@18 {{substituting into a lambda}}
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f("foo"); // expected-note {{here}}
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}
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#endif
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