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Clean up string's deduction guides tests. Mark old versions of clang as unsupported, b/c they don't have deduction guides, even in C++17 mode

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@324619 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-02-08 16:25:57 +00:00
parent 1a2caf573f
commit 0eec3e8b24
3 changed files with 83 additions and 58 deletions
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57
test/std/strings/basic.string/string.cons/iter_alloc.pass.cpp
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@@ -13,17 +13,6 @@
// basic_string(InputIterator begin, InputIterator end,
// const Allocator& a = Allocator());
// template<class InputIterator,
// class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
// basic_string(InputIterator, InputIterator, Allocator = Allocator())
// -> basic_string<typename iterator_traits<InputIterator>::value_type,
// char_traits<typename iterator_traits<InputIterator>::value_type>,
// Allocator>;
//
// The deduction guide shall not participate in overload resolution if InputIterator
// is a type that does not qualify as an input iterator, or if Allocator is a type
// that does not qualify as an allocator.
#include <string>
#include <iterator>
@@ -128,50 +117,4 @@ int main()
test(input_iterator<const char*>(s), input_iterator<const char*>(s+50), A());
}
#endif
#if 0
// Test deduction guides
#if TEST_STD_VER > 14
{
const char* s = "12345678901234";
std::basic_string s1{s, s+10, std::allocator<char>{}};
using S = decltype(s1); // what type did we get?
static_assert(std::is_same_v<S::value_type, char>, "");
static_assert(std::is_same_v<S::traits_type, std::char_traits<char>>, "");
static_assert(std::is_same_v<S::allocator_type, std::allocator<char>>, "");
assert(s1.size() == 10);
assert(s1.compare(0, s1.size(), s, s1.size()) == 0);
}
{
const wchar_t* s = L"12345678901234";
std::basic_string s1{s, s+10, test_allocator<wchar_t>{}};
using S = decltype(s1); // what type did we get?
static_assert(std::is_same_v<S::value_type, wchar_t>, "");
static_assert(std::is_same_v<S::traits_type, std::char_traits<wchar_t>>, "");
static_assert(std::is_same_v<S::allocator_type, test_allocator<wchar_t>>, "");
assert(s1.size() == 10);
assert(s1.compare(0, s1.size(), s, s1.size()) == 0);
}
{
const char16_t* s = u"12345678901234";
std::basic_string s1{s, s+10, min_allocator<char16_t>{}};
using S = decltype(s1); // what type did we get?
static_assert(std::is_same_v<S::value_type, char16_t>, "");
static_assert(std::is_same_v<S::traits_type, std::char_traits<char16_t>>, "");
static_assert(std::is_same_v<S::allocator_type, min_allocator<char16_t>>, "");
assert(s1.size() == 10);
assert(s1.compare(0, s1.size(), s, s1.size()) == 0);
}
{
const char32_t* s = U"12345678901234";
std::basic_string s1{s, s+10, explicit_allocator<char32_t>{}};
using S = decltype(s1); // what type did we get?
static_assert(std::is_same_v<S::value_type, char32_t>, "");
static_assert(std::is_same_v<S::traits_type, std::char_traits<char32_t>>, "");
static_assert(std::is_same_v<S::allocator_type, explicit_allocator<char32_t>>, "");
assert(s1.size() == 10);
assert(s1.compare(0, s1.size(), s, s1.size()) == 0);
}
#endif
#endif
}