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This patch implements P0634r3 that removes the need for 'typename' in certain contexts. For example, ``` template <typename T> using foo = T::type; // ok ``` This is also allowed in previous language versions as an extension, because I think it's pretty useful. :) Reviewed By: #clang-language-wg, erichkeane Differential Revision: https://reviews.llvm.org/D53847
6 lines
228 B
C++
6 lines
228 B
C++
// RUN: %clang_cc1 -triple x86_64-linux -fsyntax-only -frounding-math -verify %s
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template <class b> b::a() {}
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// expected-warning@-1 {{implicit 'typename' is a C++20 extension}}
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// expected-error@-2 {{expected unqualified-id}}
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