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/* Self tests for vector utility routines for GDB, the GNU debugger.
Copyright (C) 2019-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program 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 of the License, or
(at your option) any later version.
This program 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 program. If not, see <http://www.gnu.org/licenses/>. */
#include "gdbsupport/selftest.h"
#include "gdbsupport/gdb_vecs.h"
namespace selftests {
namespace vector_utils_tests {
static void
unordered_remove_tests ()
{
/* Create vector with a single object in, and then remove that object.
This test was added after a bug was discovered where unordered_remove
would cause a self move assign. If the C++ standard library is
compiled in debug mode (by passing -D_GLIBCXX_DEBUG=1) and the
operator= is removed from struct obj this test used to fail with an
error from the C++ standard library. */
struct obj
{
std::vector<void *> var;
obj() = default;
/* gcc complains if we provide an assignment operator but no copy
constructor, so provide one even if don't really care for this test. */
obj(const obj &other)
{
this->var = other.var;
}
obj &operator= (const obj &other)
{
if (this == &other)
error (_("detected self move assign"));
this->var = other.var;
return *this;
}
};
std::vector<obj> v;
v.emplace_back ();
auto it = v.end () - 1;
unordered_remove (v, it);
SELF_CHECK (v.empty ());
}
} /* namespace vector_utils_tests */
} /* namespace selftests */
void _initialize_vec_utils_selftests ();
void
_initialize_vec_utils_selftests ()
{
selftests::register_test
("unordered_remove",
selftests::vector_utils_tests::unordered_remove_tests);
}
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