diff options
Diffstat (limited to 'gdb/unittests/basic_string_view/capacity/1.cc')
| -rw-r--r-- | gdb/unittests/basic_string_view/capacity/1.cc | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/gdb/unittests/basic_string_view/capacity/1.cc b/gdb/unittests/basic_string_view/capacity/1.cc new file mode 100644 index 00000000000..d49ecbd9dd5 --- /dev/null +++ b/gdb/unittests/basic_string_view/capacity/1.cc @@ -0,0 +1,162 @@ +// { dg-options "-std=gnu++17" } + +// Copyright (C) 2013-2018 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// string_view size, length + +#include <string_view> +#include <cstring> +#include <testsuite_hooks.h> + +template<typename T> + struct A { }; + +template<typename T> + bool + operator==(const A<T>&, const A<T>&) { return true; } + +template<typename T> + bool + operator<(const A<T>&, const A<T>&) { return true; } + +struct B { }; + +// char_traits specialization +namespace std +{ + template<> + struct char_traits<A<B> > + { + typedef A<B> char_type; + // Unsigned as wint_t in unsigned. + typedef unsigned long int_type; + typedef streampos pos_type; + typedef streamoff off_type; + typedef mbstate_t state_type; + + static void + assign(char_type& __c1, const char_type& __c2) + { __c1 = __c2; } + + static bool + eq(const char_type& __c1, const char_type& __c2) + { return __c1 == __c2; } + + static bool + lt(const char_type& __c1, const char_type& __c2) + { return __c1 < __c2; } + + static int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + for (size_t __i = 0; __i < __n; ++__i) + if (!eq(__s1[__i], __s2[__i])) + return lt(__s1[__i], __s2[__i]) ? -1 : 1; + return 0; + } + + static size_t + length(const char_type* __s) + { + const char_type* __p = __s; + while (__p) + ++__p; + return (__p - __s); + } + + static const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p) + if (*__p == __a) return __p; + return 0; + } + + static char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); } + + static char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); } + + static char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + for (char_type* __p = __s; __p < __s + __n; ++__p) + assign(*__p, __a); + return __s; + } + + static char_type + to_char_type(const int_type&) + { return char_type(); } + + static int_type + to_int_type(const char_type&) { return int_type(); } + + static bool + eq_int_type(const int_type& __c1, const int_type& __c2) + { return __c1 == __c2; } + + static int_type + eof() { return static_cast<int_type>(-1); } + + static int_type + not_eof(const int_type& __c) + { return eq_int_type(__c, eof()) ? int_type(0) : __c; } + }; +} // namespace std + +void +test01() +{ + std::basic_string_view<A<B>> str02; + typedef std::basic_string_view< A<B> >::size_type size_type_o; + size_type_o sz03; + size_type_o sz04; + + // non-POD types: size, length, max_size, empty() + bool b01 = str02.empty(); + VERIFY( b01 == true ); + sz03 = str02.size(); + sz04 = str02.length(); + VERIFY( sz03 == sz04 ); + str02.data(); + sz03 = str02.size(); + sz04 = str02.length(); + VERIFY( sz03 == sz04 ); + + sz03 = str02.max_size(); + VERIFY( sz03 >= sz04 ); + + sz03 = str02.size(); + str02 = {}; + b01 = str02.empty(); + VERIFY( b01 == true ); + sz04 = str02.size(); + VERIFY( sz03 >= sz04 ); +} + +int +main() +{ + test01(); + + return 0; +} |