forked from OSchip/llvm-project
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s
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template < bool condition, typename T = void >
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struct enable_if { typedef T type; };
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template< typename T >
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struct enable_if< false, T > {};
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// PR5876
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namespace Casts {
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template< unsigned O >
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void implicit(typename enable_if< O <= 4 >::type* = 0) {
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}
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template< unsigned O >
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void cstyle(typename enable_if< O <= (unsigned)4 >::type* = 0) {
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}
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template< unsigned O >
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void functional(typename enable_if< O <= unsigned(4) >::type* = 0) {
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}
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template< unsigned O >
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void static_(typename enable_if< O <= static_cast<unsigned>(4) >::type* = 0) {
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}
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// FIXME: Test const_cast, reinterpret_cast, dynamic_cast, which are
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// a bit harder to use in template arguments.
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template <unsigned N> struct T {};
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template <int N> T<N> f() { return T<N>(); }
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// CHECK: define weak_odr void @_ZN5Casts8implicitILj4EEEvPN9enable_ifIXleT_Li4EEvE4typeE
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template void implicit<4>(void*);
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// CHECK: define weak_odr void @_ZN5Casts6cstyleILj4EEEvPN9enable_ifIXleT_cvjLi4EEvE4typeE
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template void cstyle<4>(void*);
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// CHECK: define weak_odr void @_ZN5Casts10functionalILj4EEEvPN9enable_ifIXleT_cvjLi4EEvE4typeE
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template void functional<4>(void*);
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// CHECK: define weak_odr void @_ZN5Casts7static_ILj4EEEvPN9enable_ifIXleT_cvjLi4EEvE4typeE
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template void static_<4>(void*);
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// CHECK: define weak_odr void @_ZN5Casts1fILi6EEENS_1TIXT_EEEv
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template T<6> f<6>();
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}
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