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view gcc/testsuite/g++.dg/concepts/diagnostic6.C @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 2b5abeee2509
children
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// { dg-do compile { target c++2a } }

template<typename T>
  concept C = requires (T t) { t + 0; };
// { dg-message "satisfaction of .C<T>. .with T = typename T::type." "" { target *-*-* } .-1 }

template<typename T>
  concept D = C<T>;
// { dg-message "satisfaction of .D<typename T::type>. .with T = int." "" { target *-*-* } .-1 }

template<typename T>
  concept E = D<typename T::type>;

static_assert(E<int>); // { dg-error "static assertion failed|not a class" }