52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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// expected-no-diagnostics
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namespace DeductionForInstantiation {
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template<unsigned I, typename ...Types>
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struct X { };
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template<typename ...Types>
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void f0(X<sizeof...(Types), Types&...>) { }
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// No explicitly-specified arguments
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template void f0(X<0>);
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template void f0(X<1, int&>);
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template void f0(X<2, int&, short&>);
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// One explicitly-specified argument
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template void f0<float>(X<1, float&>);
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template void f0<double>(X<1, double&>);
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// Two explicitly-specialized arguments
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template void f0<char, unsigned char>(X<2, char&, unsigned char&>);
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template void f0<signed char, char>(X<2, signed char&, char&>);
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// FIXME: Extension of explicitly-specified arguments
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// template void f0<short, int>(X<3, short&, int&, long&>);
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}
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namespace DeductionWithConversion {
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template<char...> struct char_values {
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static const unsigned value = 0;
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};
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template<int C1, char C3>
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struct char_values<C1, 12, C3> {
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static const unsigned value = 1;
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};
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int check0[char_values<1, 12, 3>::value == 1? 1 : -1];
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template<int...> struct int_values {
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static const unsigned value = 0;
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};
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template<unsigned char C1, unsigned char C3>
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struct int_values<C1, 12, C3> {
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static const unsigned value = 1;
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};
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int check1[int_values<256, 12, 3>::value == 0? 1 : -1];
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int check2[int_values<3, 12, 3>::value == 1? 1 : -1];
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}
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