diff options
Diffstat (limited to 'libcxx/test/utilities/function.objects/unord.hash')
3 files changed, 167 insertions, 0 deletions
diff --git a/libcxx/test/utilities/function.objects/unord.hash/floating.pass.cpp b/libcxx/test/utilities/function.objects/unord.hash/floating.pass.cpp new file mode 100644 index 00000000000..003ba198c64 --- /dev/null +++ b/libcxx/test/utilities/function.objects/unord.hash/floating.pass.cpp @@ -0,0 +1,68 @@ +//===----------------------------------------------------------------------===// +// +// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <functional> + +// template <class T> +// struct hash +// : public unary_function<T, size_t> +// { +// size_t operator()(T val) const; +// }; + +// Not very portable + +#include <functional> +#include <cassert> +#include <type_traits> +#include <limits> +#include <cmath> + +template <class T> +void +test() +{ + static_assert((std::is_base_of<std::unary_function<T, std::size_t>, + std::hash<T> >::value), ""); + std::hash<T> h; + std::size_t t0 = h(0.); + std::size_t tn0 = h(-0.); + std::size_t tp1 = h(0.1); + std::size_t t1 = h(1); + std::size_t tn1 = h(-1); + std::size_t pinf = h(INFINITY); + std::size_t ninf = h(-INFINITY); + assert(t0 == tn0); + assert(t0 != tp1); + assert(t0 != t1); + assert(t0 != tn1); + assert(t0 != pinf); + assert(t0 != ninf); + + assert(tp1 != t1); + assert(tp1 != tn1); + assert(tp1 != pinf); + assert(tp1 != ninf); + + assert(t1 != tn1); + assert(t1 != pinf); + assert(t1 != ninf); + + assert(tn1 != pinf); + assert(tn1 != ninf); + + assert(pinf != ninf); +} + +int main() +{ + test<float>(); + test<double>(); + test<long double>(); +} diff --git a/libcxx/test/utilities/function.objects/unord.hash/integral.pass.cpp b/libcxx/test/utilities/function.objects/unord.hash/integral.pass.cpp new file mode 100644 index 00000000000..1e6c0d559de --- /dev/null +++ b/libcxx/test/utilities/function.objects/unord.hash/integral.pass.cpp @@ -0,0 +1,57 @@ +//===----------------------------------------------------------------------===// +// +// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <functional> + +// template <class T> +// struct hash +// : public unary_function<T, size_t> +// { +// size_t operator()(T val) const; +// }; + +// Not very portable + +#include <functional> +#include <cassert> +#include <type_traits> +#include <limits> + +template <class T> +void +test() +{ + static_assert((std::is_base_of<std::unary_function<T, std::size_t>, + std::hash<T> >::value), ""); + std::hash<T> h; + for (int i = 0; i <= 5; ++i) + { + T t(i); + assert(h(t) == t); + } +} + +int main() +{ + test<bool>(); + test<char>(); + test<signed char>(); + test<unsigned char>(); + test<char16_t>(); + test<char32_t>(); + test<wchar_t>(); + test<short>(); + test<unsigned short>(); + test<int>(); + test<unsigned int>(); + test<long>(); + test<unsigned long>(); + test<long long>(); + test<unsigned long long>(); +} diff --git a/libcxx/test/utilities/function.objects/unord.hash/pointer.pass.cpp b/libcxx/test/utilities/function.objects/unord.hash/pointer.pass.cpp new file mode 100644 index 00000000000..1a66b5b8cd4 --- /dev/null +++ b/libcxx/test/utilities/function.objects/unord.hash/pointer.pass.cpp @@ -0,0 +1,42 @@ +//===----------------------------------------------------------------------===// +// +// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <functional> + +// template <class T> +// struct hash +// : public unary_function<T, size_t> +// { +// size_t operator()(T val) const; +// }; + +// Not very portable + +#include <functional> +#include <cassert> +#include <type_traits> +#include <limits> + +template <class T> +void +test() +{ + static_assert((std::is_base_of<std::unary_function<T, std::size_t>, + std::hash<T> >::value), ""); + std::hash<T> h; + typedef typename std::remove_pointer<T>::type type; + type i; + type j; + assert(h(&i) != h(&j)); +} + +int main() +{ + test<int*>(); +} |
