generic_string_alloc.pass.cpp (1783B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // UNSUPPORTED: c++98, c++03 11 12 // <filesystem> 13 14 // class path 15 16 // template <class ECharT, class Traits = char_traits<ECharT>, 17 // class Allocator = allocator<ECharT>> 18 // basic_string<ECharT, Traits, Allocator> 19 // generic_string(const Allocator& a = Allocator()) const; 20 21 #include "filesystem_include.hpp" 22 #include <type_traits> 23 #include <cassert> 24 25 #include "test_macros.h" 26 #include "test_iterators.h" 27 #include "count_new.hpp" 28 #include "min_allocator.h" 29 #include "filesystem_test_helper.hpp" 30 31 MultiStringType longString = MKSTR("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/123456789/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"); 32 33 34 // generic_string<C, T, A> forwards to string<C, T, A>. Tests for 35 // string<C, T, A>() are in "path.native.op/string_alloc.pass.cpp". 36 // generic_string is minimally tested here. 37 int main() 38 { 39 using namespace fs; 40 using CharT = wchar_t; 41 using Traits = std::char_traits<CharT>; 42 using Alloc = malloc_allocator<CharT>; 43 using Str = std::basic_string<CharT, Traits, Alloc>; 44 const wchar_t* expect = longString; 45 const path p((const char*)longString); 46 { 47 DisableAllocationGuard g; 48 Alloc a; 49 Alloc::disable_default_constructor = true; 50 Str s = p.generic_string<wchar_t, Traits, Alloc>(a); 51 assert(s == expect); 52 assert(Alloc::alloc_count > 0); 53 assert(Alloc::outstanding_alloc() == 1); 54 } 55 }