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Diffstat (limited to 'clang/test/CXX/temp/temp.decls/temp.variadic/deduction.cpp')
-rw-r--r--clang/test/CXX/temp/temp.decls/temp.variadic/deduction.cpp50
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diff --git a/clang/test/CXX/temp/temp.decls/temp.variadic/deduction.cpp b/clang/test/CXX/temp/temp.decls/temp.variadic/deduction.cpp
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index 0000000..fec8060
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.variadic/deduction.cpp
@@ -0,0 +1,50 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+namespace DeductionForInstantiation {
+ template<unsigned I, typename ...Types>
+ struct X { };
+
+ template<typename ...Types>
+ void f0(X<sizeof...(Types), Types&...>) { }
+
+ // No explicitly-specified arguments
+ template void f0(X<0>);
+ template void f0(X<1, int&>);
+ template void f0(X<2, int&, short&>);
+
+ // One explicitly-specified argument
+ template void f0<float>(X<1, float&>);
+ template void f0<double>(X<1, double&>);
+
+ // Two explicitly-specialized arguments
+ template void f0<char, unsigned char>(X<2, char&, unsigned char&>);
+ template void f0<signed char, char>(X<2, signed char&, char&>);
+
+ // FIXME: Extension of explicitly-specified arguments
+ // template void f0<short, int>(X<3, short&, int&, long&>);
+}
+
+namespace DeductionWithConversion {
+ template<char...> struct char_values {
+ static const unsigned value = 0;
+ };
+
+ template<int C1, char C3>
+ struct char_values<C1, 12, C3> {
+ static const unsigned value = 1;
+ };
+
+ int check0[char_values<1, 12, 3>::value == 1? 1 : -1];
+
+ template<int...> struct int_values {
+ static const unsigned value = 0;
+ };
+
+ template<unsigned char C1, unsigned char C3>
+ struct int_values<C1, 12, C3> {
+ static const unsigned value = 1;
+ };
+
+ int check1[int_values<256, 12, 3>::value == 0? 1 : -1];
+ int check2[int_values<3, 12, 3>::value == 1? 1 : -1];
+}