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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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <filesystem>
// class path
// template <class ECharT, class Traits = char_traits<ECharT>,
// class Allocator = allocator<ECharT>>
// basic_string<ECharT, Traits, Allocator>
// string(const Allocator& a = Allocator()) const;
#include "filesystem_include.hpp"
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
#include "count_new.hpp"
#include "min_allocator.h"
#include "filesystem_test_helper.hpp"
// the SSO is always triggered for strings of size 2.
MultiStringType shortString = MKSTR("a");
MultiStringType longString = MKSTR("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/123456789/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
template <class CharT>
void doShortStringTest(MultiStringType const& MS) {
using namespace fs;
using Ptr = CharT const*;
using Str = std::basic_string<CharT>;
using Alloc = std::allocator<CharT>;
Ptr value = MS;
const path p((const char*)MS);
{
DisableAllocationGuard g;
Str s = p.string<CharT>();
assert(s == value);
Str s2 = p.string<CharT>(Alloc{});
assert(s2 == value);
}
using MAlloc = malloc_allocator<CharT>;
MAlloc::reset();
{
using Traits = std::char_traits<CharT>;
using AStr = std::basic_string<CharT, Traits, MAlloc>;
DisableAllocationGuard g;
AStr s = p.string<CharT, Traits, MAlloc>();
assert(s == value);
assert(MAlloc::alloc_count == 0);
assert(MAlloc::outstanding_alloc() == 0);
}
MAlloc::reset();
{ // Other allocator - provided copy
using Traits = std::char_traits<CharT>;
using AStr = std::basic_string<CharT, Traits, MAlloc>;
DisableAllocationGuard g;
MAlloc a;
// don't allow another allocator to be default constructed.
MAlloc::disable_default_constructor = true;
AStr s = p.string<CharT, Traits, MAlloc>(a);
assert(s == value);
assert(MAlloc::alloc_count == 0);
assert(MAlloc::outstanding_alloc() == 0);
}
MAlloc::reset();
}
template <class CharT>
void doLongStringTest(MultiStringType const& MS) {
using namespace fs;
using Ptr = CharT const*;
using Str = std::basic_string<CharT>;
Ptr value = MS;
const path p((const char*)MS);
{ // Default allocator
using Alloc = std::allocator<CharT>;
Str s = p.string<CharT>();
assert(s == value);
Str s2 = p.string<CharT>(Alloc{});
assert(s2 == value);
}
using MAlloc = malloc_allocator<CharT>;
MAlloc::reset();
{ // Other allocator - default construct
using Traits = std::char_traits<CharT>;
using AStr = std::basic_string<CharT, Traits, MAlloc>;
DisableAllocationGuard g;
AStr s = p.string<CharT, Traits, MAlloc>();
assert(s == value);
assert(MAlloc::alloc_count > 0);
assert(MAlloc::outstanding_alloc() == 1);
}
MAlloc::reset();
{ // Other allocator - provided copy
using Traits = std::char_traits<CharT>;
using AStr = std::basic_string<CharT, Traits, MAlloc>;
DisableAllocationGuard g;
MAlloc a;
// don't allow another allocator to be default constructed.
MAlloc::disable_default_constructor = true;
AStr s = p.string<CharT, Traits, MAlloc>(a);
assert(s == value);
assert(MAlloc::alloc_count > 0);
assert(MAlloc::outstanding_alloc() == 1);
}
MAlloc::reset();
/////////////////////////////////////////////////////////////////////////////
}
int main()
{
using namespace fs;
{
auto const& S = shortString;
doShortStringTest<char>(S);
doShortStringTest<wchar_t>(S);
doShortStringTest<char16_t>(S);
doShortStringTest<char32_t>(S);
}
{
auto const& S = longString;
doLongStringTest<char>(S);
doLongStringTest<wchar_t>(S);
doLongStringTest<char16_t>(S);
doLongStringTest<char32_t>(S);
}
}
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