| // RUN: %clang_cc1 -std=c++2a -emit-pch %s -o %t |
| // RUN: %clang_cc1 -std=c++2a -include-pch %t -verify %s |
| |
| // RUN: %clang_cc1 -std=c++2a -emit-pch -fpch-instantiate-templates %s -o %t |
| // RUN: %clang_cc1 -std=c++2a -include-pch %t -verify %s |
| |
| // expected-no-diagnostics |
| |
| #ifndef HEADER |
| #define HEADER |
| |
| auto l1 = []<int I>() constexpr -> int { |
| return I; |
| }; |
| |
| auto l2 = []<auto I>() constexpr -> decltype(I) { |
| return I; |
| }; |
| |
| auto l3 = []<class T>(auto i) constexpr -> T { |
| return T(i); |
| }; |
| |
| auto l4 = []<template<class> class T, class U>(T<U>, auto i) constexpr -> U { |
| return U(i); |
| }; |
| |
| #else /*included pch*/ |
| |
| static_assert(l1.operator()<5>() == 5); |
| static_assert(l1.operator()<6>() == 6); |
| |
| static_assert(l2.operator()<7>() == 7); |
| static_assert(l2.operator()<nullptr>() == nullptr); |
| |
| static_assert(l3.operator()<int>(8.4) == 8); |
| static_assert(l3.operator()<int>(9.9) == 9); |
| |
| template<typename T> |
| struct DummyTemplate { }; |
| |
| static_assert(l4(DummyTemplate<float>(), 12) == 12.0); |
| static_assert(l4(DummyTemplate<int>(), 19.8) == 19); |
| |
| #endif // HEADER |