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annotate gcc/testsuite/g++.dg/cpp2a/concepts-pr67969.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
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1 // { dg-do compile { target c++2a } }
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2 // { dg-additional-options "-fconcepts-ts" }
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3 template <class, class>
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4 class NumericArray {};
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5
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6 template <class>
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7 constexpr bool match_numeric_array = false;
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8 template <class Scalar, class Shape>
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9 constexpr bool
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10 match_numeric_array<NumericArray<Scalar, Shape>> =
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11 true;
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12 template <class T>
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13 concept bool cpt_NumericArrayContainer() {
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14 return match_numeric_array<T>;
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15 }
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16
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17 template <class X>
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18 concept bool cpt_NumericArray() {
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19 return requires{requires cpt_NumericArrayContainer<X>();};
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20 }
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21
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22
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23 template <class X>
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24 requires !cpt_NumericArray<X>() auto func(int, X) {}
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25
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26 template <class X>
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27 requires cpt_NumericArray<X>() auto func(int, X) {}
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28
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29 int main() {
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30 NumericArray<double, int> v5;
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31 func(0, v5);
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32 }