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annotate gcc/testsuite/g++.dg/concepts/fn4.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 1830386684a0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1830386684a0 gcc-9.2.0
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1 // { dg-do compile { target c++17_only } }
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84e7813d76e9 gcc-8.2
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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 C() { return __is_class(T); }
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6
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7 template<typename T>
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8 concept bool D() { return C<T>() and __is_empty(T); }
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9
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10 struct S1 { } s1;
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11 struct S2 { int n; } s2;
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12
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13 template<C T> void f1(T x) { }
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14 template<D T> void f1(T x) { }
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15
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16 int main() {
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17 f1(0); // { dg-error "matching" }
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18 }