89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <string>
|
|
|
|
// basic_string<charT,traits,Allocator>& assign(const charT* s);
|
|
|
|
#include <string>
|
|
#include <stdexcept>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "min_allocator.h"
|
|
|
|
template <class S>
|
|
TEST_CONSTEXPR_CXX20 void
|
|
test(S s, const typename S::value_type* str, S expected)
|
|
{
|
|
s.assign(str);
|
|
LIBCPP_ASSERT(s.__invariants());
|
|
assert(s == expected);
|
|
}
|
|
|
|
bool test() {
|
|
{
|
|
typedef std::string S;
|
|
test(S(), "", S());
|
|
test(S(), "12345", S("12345"));
|
|
test(S(), "12345678901234567890", S("12345678901234567890"));
|
|
|
|
test(S("12345"), "", S());
|
|
test(S("12345"), "12345", S("12345"));
|
|
test(S("12345"), "1234567890", S("1234567890"));
|
|
|
|
test(S("12345678901234567890"), "", S());
|
|
test(S("12345678901234567890"), "12345", S("12345"));
|
|
test(S("12345678901234567890"), "12345678901234567890",
|
|
S("12345678901234567890"));
|
|
}
|
|
#if TEST_STD_VER >= 11
|
|
{
|
|
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
|
|
test(S(), "", S());
|
|
test(S(), "12345", S("12345"));
|
|
test(S(), "12345678901234567890", S("12345678901234567890"));
|
|
|
|
test(S("12345"), "", S());
|
|
test(S("12345"), "12345", S("12345"));
|
|
test(S("12345"), "1234567890", S("1234567890"));
|
|
|
|
test(S("12345678901234567890"), "", S());
|
|
test(S("12345678901234567890"), "12345", S("12345"));
|
|
test(S("12345678901234567890"), "12345678901234567890",
|
|
S("12345678901234567890"));
|
|
}
|
|
#endif
|
|
|
|
{ // test assignment to self
|
|
typedef std::string S;
|
|
S s_short = "123/";
|
|
S s_long = "Lorem ipsum dolor sit amet, consectetur/";
|
|
|
|
s_short.assign(s_short.c_str());
|
|
assert(s_short == "123/");
|
|
s_short.assign(s_short.c_str() + 2);
|
|
assert(s_short == "3/");
|
|
|
|
s_long.assign(s_long.c_str() + 30);
|
|
assert(s_long == "nsectetur/");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
test();
|
|
#if TEST_STD_VER > 17
|
|
// static_assert(test());
|
|
#endif
|
|
|
|
return 0;
|
|
}
|