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libcxx/test/std/strings/basic.string/string.modifiers/string_assign/string_view.pass.cpp

106 lines
3.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string>
// basic_string<charT,traits,Allocator>&
// assign(basic_string_view<charT,traits> sv);
#include <string>
#include <string_view>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
#include "test_allocator.h"
template <class S, class SV>
void
test(S s, SV sv, S expected)
{
s.assign(sv);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
template <class S, class SV>
void
testAlloc(S s, SV sv, const typename S::allocator_type& a)
{
s.assign(sv);
LIBCPP_ASSERT(s.__invariants());
assert(s == sv);
assert(s.get_allocator() == a);
}
int main()
{
{
typedef std::string S;
typedef std::string_view SV;
test(S(), SV(), S());
test(S(), SV("12345"), S("12345"));
test(S(), SV("1234567890"), S("1234567890"));
test(S(), SV("12345678901234567890"), S("12345678901234567890"));
test(S("12345"), SV(), S());
test(S("12345"), SV("12345"), S("12345"));
test(S("12345"), SV("1234567890"), S("1234567890"));
test(S("12345"), SV("12345678901234567890"), S("12345678901234567890"));
test(S("1234567890"), SV(), S());
test(S("1234567890"), SV("12345"), S("12345"));
test(S("1234567890"), SV("1234567890"), S("1234567890"));
test(S("1234567890"), SV("12345678901234567890"), S("12345678901234567890"));
test(S("12345678901234567890"), SV(), S());
test(S("12345678901234567890"), SV("12345"), S("12345"));
test(S("12345678901234567890"), SV("1234567890"), S("1234567890"));
test(S("12345678901234567890"), SV("12345678901234567890"),
S("12345678901234567890"));
testAlloc(S(), SV(), std::allocator<char>());
testAlloc(S(), SV("12345"), std::allocator<char>());
testAlloc(S(), SV("1234567890"), std::allocator<char>());
testAlloc(S(), SV("12345678901234567890"), std::allocator<char>());
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string <char, std::char_traits<char>, min_allocator<char>> S;
typedef std::basic_string_view<char, std::char_traits<char> > SV;
test(S(), SV(), S());
test(S(), SV("12345"), S("12345"));
test(S(), SV("1234567890"), S("1234567890"));
test(S(), SV("12345678901234567890"), S("12345678901234567890"));
test(S("12345"), SV(), S());
test(S("12345"), SV("12345"), S("12345"));
test(S("12345"), SV("1234567890"), S("1234567890"));
test(S("12345"), SV("12345678901234567890"), S("12345678901234567890"));
test(S("1234567890"), SV(), S());
test(S("1234567890"), SV("12345"), S("12345"));
test(S("1234567890"), SV("1234567890"), S("1234567890"));
test(S("1234567890"), SV("12345678901234567890"), S("12345678901234567890"));
test(S("12345678901234567890"), SV(), S());
test(S("12345678901234567890"), SV("12345"), S("12345"));
test(S("12345678901234567890"), SV("1234567890"), S("1234567890"));
test(S("12345678901234567890"), SV("12345678901234567890"),
S("12345678901234567890"));
testAlloc(S(), SV(), min_allocator<char>());
testAlloc(S(), SV("12345"), min_allocator<char>());
testAlloc(S(), SV("1234567890"), min_allocator<char>());
testAlloc(S(), SV("12345678901234567890"), min_allocator<char>());
}
#endif
}