| // Copyright (C) 2017-2021 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/>. |
| |
| // { dg-do run { target c++14 } } |
| // { dg-require-cstdint "" } |
| // { dg-options "-Wno-address" } |
| |
| #include <experimental/source_location> |
| #include <experimental/string_view> |
| #include <testsuite_hooks.h> |
| |
| using std::experimental::source_location; |
| using std::experimental::string_view; |
| |
| void |
| test01() |
| { |
| constexpr source_location loc = source_location::current(); |
| static_assert( loc.line() == 32 ); |
| // static_assert( loc.column() == 35 ); |
| VERIFY( loc.file_name() == __FILE__ ); |
| VERIFY( loc.function_name() == string_view(__FUNCTION__) ); |
| } |
| |
| struct S { |
| string_view func; |
| source_location loc = source_location::current(); |
| |
| S(source_location loc = source_location::current()) |
| : func(__FUNCTION__), loc(loc) // values of loc will be from call-site |
| {} |
| |
| S(int) |
| : func(__FUNCTION__) // values of loc should be hereabouts |
| {} |
| }; |
| |
| void test02() |
| { |
| S s0; |
| VERIFY( s0.loc.line() == 54 ); |
| // static_assert( s0.loc.column() == 7 ); |
| VERIFY( s0.loc.file_name() == __FILE__ ); |
| VERIFY( s0.loc.function_name() == string_view(__FUNCTION__) ); |
| |
| S s1(1); |
| VERIFY( s1.loc.line() == 48 ); |
| VERIFY( s1.loc.file_name() == __FILE__ ); |
| VERIFY( s1.loc.function_name() == s1.func ); |
| } |
| |
| source_location f(source_location a = source_location::current()) { |
| return a; |
| } |
| |
| source_location g(string_view& func) { |
| source_location a = source_location::current(); |
| func = __FUNCTION__; |
| return a; |
| } |
| |
| void test03() |
| { |
| auto loc = f(); // f's first argument corresponds to this line of code |
| VERIFY( loc.line() == 78 ); |
| // static_assert( loc.column() == 16 ); |
| VERIFY( loc.file_name() == __FILE__ ); |
| VERIFY( loc.function_name() == string_view(__FUNCTION__) ); |
| |
| source_location c = source_location::current(); |
| loc = f(c); // f's first argument gets the same values as c, above |
| VERIFY( loc.line() == 84 ); |
| // static_assert( loc.column() == 23 ); |
| VERIFY( loc.file_name() == __FILE__ ); |
| VERIFY( loc.function_name() == string_view(__FUNCTION__) ); |
| |
| string_view func; |
| loc = g(func); |
| VERIFY( loc.line() == 71 ); |
| // static_assert( loc.column() == 23 ); |
| VERIFY( loc.file_name() == __FILE__ ); |
| VERIFY( loc.function_name() == func ); |
| } |
| |
| void |
| test04() |
| { |
| using std::is_same; |
| using std::uint_least32_t; |
| auto loc = source_location::current(); |
| static_assert(is_same<decltype(loc), source_location>::value, ""); |
| static_assert(is_same<decltype(loc.line()), uint_least32_t>::value, ""); |
| static_assert(is_same<decltype(loc.column()), uint_least32_t>::value, ""); |
| static_assert(is_same<decltype(loc.file_name()), const char*>::value, ""); |
| static_assert(is_same<decltype(loc.function_name()), const char*>::value, ""); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| test04(); |
| } |