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Implement std::string_view as described in http://wg21.link/P0254R1. Reviewed as https://reviews.llvm.org/D21459

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@276238 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2016-07-21 05:31:24 +00:00
parent f50841f3ac
commit 1e00d6db31
100 changed files with 19172 additions and 731 deletions
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83
test/std/strings/basic.string/string.modifiers/string_append/string_view.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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>&
// append(basic_string_view<charT,traits> sv);
#include <string>
#include <string_view>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S, class SV>
void
test(S s, SV sv, S expected)
{
s.append(sv);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
}
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("12345"));
test(S("12345"), SV("12345"), S("1234512345"));
test(S("12345"), SV("1234567890"), S("123451234567890"));
test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
test(S("1234567890"), SV(), S("1234567890"));
test(S("1234567890"), SV("12345"), S("123456789012345"));
test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
test(S("12345678901234567890"), SV(), S("12345678901234567890"));
test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
test(S("12345678901234567890"), SV("12345678901234567890"),
S("1234567890123456789012345678901234567890"));
}
#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("12345"));
test(S("12345"), SV("12345"), S("1234512345"));
test(S("12345"), SV("1234567890"), S("123451234567890"));
test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890"));
test(S("1234567890"), SV(), S("1234567890"));
test(S("1234567890"), SV("12345"), S("123456789012345"));
test(S("1234567890"), SV("1234567890"), S("12345678901234567890"));
test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890"));
test(S("12345678901234567890"), SV(), S("12345678901234567890"));
test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345"));
test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890"));
test(S("12345678901234567890"), SV("12345678901234567890"),
S("1234567890123456789012345678901234567890"));
}
#endif
}