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6e9a694dce
Add the completed std::experimental::filesystem implementation and tests. The implementation supports C++11 or newer. The TS is built as part of 'libc++experimental.a'. Users of the TS need to manually link this library. Building and testing the TS can be disabled using the CMake option '-DLIBCXX_ENABLE_FILESYSTEM=OFF'. Currently 'libc++experimental.a' is not installed by default. To turn on the installation of the library use '-DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=ON'. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@273034 91177308-0d34-0410-b5e6-96231b3b80d8
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// <experimental/filesystem>
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// class path
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// template <class ECharT, class Traits = char_traits<ECharT>,
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// class Allocator = allocator<ECharT>>
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// basic_string<ECharT, Traits, Allocator>
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// string(const Allocator& a = Allocator()) const;
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#include <experimental/filesystem>
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#include <type_traits>
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#include <cassert>
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "count_new.hpp"
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#include "min_allocator.h"
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#include "filesystem_test_helper.hpp"
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namespace fs = std::experimental::filesystem;
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MultiStringType shortString = MKSTR("abc");
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MultiStringType longString = MKSTR("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/123456789/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
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template <class CharT>
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void doShortStringTest(MultiStringType const& MS) {
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using namespace fs;
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using Ptr = CharT const*;
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using Str = std::basic_string<CharT>;
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using Alloc = std::allocator<CharT>;
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Ptr value = MS;
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const path p((const char*)MS);
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{
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DisableAllocationGuard g; // should not allocate
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Str s = p.string<CharT>();
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assert(s == value);
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Str s2 = p.string<CharT>(Alloc{});
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assert(s2 == value);
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}
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}
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template <class CharT>
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void doLongStringTest(MultiStringType const& MS) {
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using namespace fs;
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using Ptr = CharT const*;
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using Str = std::basic_string<CharT>;
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Ptr value = MS;
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const path p((const char*)MS);
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{ // Default allocator
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using Alloc = std::allocator<CharT>;
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RequireAllocationGuard g; // should not allocate because
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Str s = p.string<CharT>();
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assert(s == value);
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Str s2 = p.string<CharT>(Alloc{});
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assert(s2 == value);
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}
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using MAlloc = malloc_allocator<CharT>;
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MAlloc::reset();
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{ // Other allocator - default construct
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using Traits = std::char_traits<CharT>;
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using AStr = std::basic_string<CharT, Traits, MAlloc>;
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DisableAllocationGuard g;
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AStr s = p.string<CharT, Traits, MAlloc>();
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assert(s == value);
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assert(MAlloc::alloc_count > 0);
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assert(MAlloc::outstanding_alloc() == 1);
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}
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MAlloc::reset();
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{ // Other allocator - provided copy
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using Traits = std::char_traits<CharT>;
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using AStr = std::basic_string<CharT, Traits, MAlloc>;
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DisableAllocationGuard g;
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MAlloc a;
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// don't allow another allocator to be default constructed.
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MAlloc::disable_default_constructor = true;
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AStr s = p.string<CharT, Traits, MAlloc>(a);
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assert(s == value);
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assert(MAlloc::alloc_count > 0);
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assert(MAlloc::outstanding_alloc() == 1);
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}
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MAlloc::reset();
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/////////////////////////////////////////////////////////////////////////////
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}
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int main()
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{
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using namespace fs;
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{
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auto const& S = shortString;
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doShortStringTest<char>(S);
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doShortStringTest<wchar_t>(S);
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doShortStringTest<char16_t>(S);
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doShortStringTest<char32_t>(S);
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}
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{
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auto const& S = longString;
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doLongStringTest<char>(S);
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doLongStringTest<wchar_t>(S);
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doLongStringTest<char16_t>(S);
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doLongStringTest<char32_t>(S);
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}
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}
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