diff options
Diffstat (limited to 'test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p3.cpp')
-rw-r--r-- | test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p3.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p3.cpp b/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p3.cpp new file mode 100644 index 0000000..c014c66 --- /dev/null +++ b/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/p3.cpp @@ -0,0 +1,60 @@ +// RUN: clang-cc -fsyntax-only %s + +template<typename T> struct A { }; + +// Top-level cv-qualifiers of P's type are ignored for type deduction. +template<typename T> A<T> f0(const T); + +void test_f0(int i, const int ci) { + A<int> a0 = f0(i); + A<int> a1 = f0(ci); +} + +// If P is a reference type, the type referred to by P is used for type +// deduction. +template<typename T> A<T> f1(T&); + +void test_f1(int i, const int ci, volatile int vi) { + A<int> a0 = f1(i); + A<const int> a1 = f1(ci); + A<volatile int> a2 = f1(vi); +} + +template<typename T, unsigned N> struct B { }; +template<typename T, unsigned N> B<T, N> g0(T (&array)[N]); + +void test_g0() { + int array0[5]; + B<int, 5> b0 = g0(array0); + const int array1[] = { 1, 2, 3}; + B<const int, 3> b1 = g0(array1); +} + +template<typename T> B<T, 0> g1(const A<T>&); + +void test_g1(A<float> af) { + B<float, 0> b0 = g1(af); + B<int, 0> b1 = g1(A<int>()); +} + +// - If the original P is a reference type, the deduced A (i.e., the type +// referred to by the reference) can be more cv-qualified than the +// transformed A. +template<typename T> A<T> f2(const T&); + +void test_f2(int i, const int ci, volatile int vi) { + A<int> a0 = f2(i); + A<int> a1 = f2(ci); + A<volatile int> a2 = f2(vi); +} + +// - The transformed A can be another pointer or pointer to member type that +// can be converted to the deduced A via a qualification conversion (4.4). +template<typename T> A<T> f3(T * * const * const); + +void test_f3(int ***ip, volatile int ***vip) { + A<int> a0 = f3(ip); + A<volatile int> a1 = f3(vip); +} + +// FIXME: the next bullet requires a lot of effort. |