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annotate gcc/testsuite/g++.dg/concepts/friend2.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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131
84e7813d76e9 gcc-8.2
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1 // { dg-do compile { target c++17 } }
84e7813d76e9 gcc-8.2
mir3636
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2 // { dg-options "-fconcepts" }
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3
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4 template<typename T>
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5 concept bool Eq() { return requires(T t) { t == t; }; }
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6
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7 template<Eq T> struct Foo { };
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8
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9 template<typename T>
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10 struct S { // { dg-error "constraint failure" }
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11 template<Eq U> friend class Bar;
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12
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13 friend class Foo<T>;
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14 };
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15
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16 struct X { };
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17
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18 int main() {
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19 S<int> si; // OK
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20 S<X> sx;
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21 }