blob: 13a9a4b96aaba5484c70e63144e9541d73c90c25 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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(const basic_string<charT,traits,Allocator>& str,
// size_type pos, size_type n,
// const Allocator& a = Allocator());
//
// basic_string(const basic_string<charT,traits,Allocator>& str,
// size_type pos,
// const Allocator& a = Allocator());
#include <string>
#include <stdexcept>
#include <algorithm>
#include <vector>
#include <scoped_allocator>
#include <cassert>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
template <class S>
void
test(S str, unsigned pos)
{
typedef typename S::traits_type T;
typedef typename S::allocator_type A;
if (pos <= str.size())
{
S s2(str, pos);
LIBCPP_ASSERT(s2.__invariants());
typename S::size_type rlen = str.size() - pos;
assert(s2.size() == rlen);
assert(T::compare(s2.data(), str.data() + pos, rlen) == 0);
assert(s2.get_allocator() == A());
assert(s2.capacity() >= s2.size());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
S s2(str, pos);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos > str.size());
}
}
#endif
}
template <class S>
void
test(S str, unsigned pos, unsigned n)
{
typedef typename S::traits_type T;
typedef typename S::allocator_type A;
if (pos <= str.size())
{
S s2(str, pos, n);
LIBCPP_ASSERT(s2.__invariants());
typename S::size_type rlen = std::min<typename S::size_type>(str.size() - pos, n);
assert(s2.size() == rlen);
assert(T::compare(s2.data(), str.data() + pos, rlen) == 0);
assert(s2.get_allocator() == A());
assert(s2.capacity() >= s2.size());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
S s2(str, pos, n);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos > str.size());
}
}
#endif
}
template <class S>
void
test(S str, unsigned pos, unsigned n, const typename S::allocator_type& a)
{
typedef typename S::traits_type T;
if (pos <= str.size())
{
S s2(str, pos, n, a);
LIBCPP_ASSERT(s2.__invariants());
typename S::size_type rlen = std::min<typename S::size_type>(str.size() - pos, n);
assert(s2.size() == rlen);
assert(T::compare(s2.data(), str.data() + pos, rlen) == 0);
assert(s2.get_allocator() == a);
assert(s2.capacity() >= s2.size());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
S s2(str, pos, n, a);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos > str.size());
}
}
#endif
}
#if TEST_STD_VER >= 11
#ifndef TEST_HAS_NO_EXCEPTIONS
void test2583()
{ // LWG #2583
typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > StringA;
std::vector<StringA, std::scoped_allocator_adaptor<test_allocator<StringA>>> vs;
StringA s{"1234"};
vs.emplace_back(s, 2);
try { vs.emplace_back(s, 5); }
catch (const std::out_of_range&) { return; }
assert(false);
}
#endif
#endif
int main()
{
{
typedef test_allocator<char> A;
typedef std::basic_string<char, std::char_traits<char>, A> S;
test(S(A(3)), 0);
test(S(A(3)), 1);
test(S("1", A(5)), 0);
test(S("1", A(5)), 1);
test(S("1", A(5)), 2);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 0);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 5);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 500);
test(S(A(3)), 0, 0);
test(S(A(3)), 0, 1);
test(S(A(3)), 1, 0);
test(S(A(3)), 1, 1);
test(S(A(3)), 1, 2);
test(S("1", A(5)), 0, 0);
test(S("1", A(5)), 0, 1);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 0);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 1);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 10);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 100);
test(S(A(3)), 0, 0, A(4));
test(S(A(3)), 0, 1, A(4));
test(S(A(3)), 1, 0, A(4));
test(S(A(3)), 1, 1, A(4));
test(S(A(3)), 1, 2, A(4));
test(S("1", A(5)), 0, 0, A(6));
test(S("1", A(5)), 0, 1, A(6));
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 0, A(8));
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 1, A(8));
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 10, A(8));
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)), 50, 100, A(8));
}
#if TEST_STD_VER >= 11
{
typedef min_allocator<char> A;
typedef std::basic_string<char, std::char_traits<char>, A> S;
test(S(A()), 0);
test(S(A()), 1);
test(S("1", A()), 0);
test(S("1", A()), 1);
test(S("1", A()), 2);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 0);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 5);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 500);
test(S(A()), 0, 0);
test(S(A()), 0, 1);
test(S(A()), 1, 0);
test(S(A()), 1, 1);
test(S(A()), 1, 2);
test(S("1", A()), 0, 0);
test(S("1", A()), 0, 1);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 0);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 1);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 10);
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 100);
test(S(A()), 0, 0, A());
test(S(A()), 0, 1, A());
test(S(A()), 1, 0, A());
test(S(A()), 1, 1, A());
test(S(A()), 1, 2, A());
test(S("1", A()), 0, 0, A());
test(S("1", A()), 0, 1, A());
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 0, A());
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 1, A());
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 10, A());
test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()), 50, 100, A());
}
#ifndef TEST_HAS_NO_EXCEPTIONS
test2583();
#endif
#endif
}