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// Copyright (C) 2017-2018 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/>.
// { dg-do run { target c++14 } }
// { dg-require-cstdint "" }
#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() == 31 );
// 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() == 53 );
// 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() == 47 );
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() == 77 );
// 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() == 83 );
// 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() == 70 );
// 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();
}
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