Ichthyostega
7ed8486774
We use the memory address to detect reference to ''the same language object.'' While primarily a testing tool, this predicate is also used in the core application at places, especially to prevent self-assignment and to handle custom allocations. It turns out that actually we need two flavours for convenient usage - `isSameObject` uses strict comparison of address and accepts only references - `isSameAdr` can also accept pointers and even void*, but will dereference pointers This leads to some further improvements of helper utilities related to memory addresses...
115 lines
2.9 KiB
C++
115 lines
2.9 KiB
C++
/*
|
|
UtilTuple(Test) - helpers and shortcuts for working with tuples
|
|
|
|
Copyright (C) Lumiera.org
|
|
2023, Hermann Vosseler <Ichthyostega@web.de>
|
|
|
|
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 2 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, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
* *****************************************************/
|
|
|
|
/** @file util-tuple-test.cpp
|
|
** unit test \ref UtilTuple_test
|
|
*/
|
|
|
|
|
|
#include "lib/test/run.hpp"
|
|
#include "lib/util-tuple.hpp"
|
|
#include "lib/iter-adapter.hpp"
|
|
#include "lib/util.hpp"
|
|
|
|
#include <vector>
|
|
|
|
|
|
using ::Test;
|
|
using util::isnil;
|
|
using std::tuple_size_v;
|
|
|
|
|
|
namespace util {
|
|
namespace test {
|
|
|
|
using VecI = std::vector<uint>;
|
|
using RangeI = lib::RangeIter<VecI::iterator>;
|
|
|
|
|
|
namespace{ // Test data and operations
|
|
|
|
VecI
|
|
someNumbz (uint count)
|
|
{
|
|
VecI numbers;
|
|
numbers.reserve(count);
|
|
while (count)
|
|
numbers.push_back(count--);
|
|
|
|
return numbers;
|
|
}
|
|
|
|
} // (End) test data and operations
|
|
|
|
|
|
|
|
/*****************************************************************//**
|
|
* @test verify some convenience shortcuts and helpers for interplay
|
|
* of tuples and iterable sequences:.
|
|
* - unpack a sequence into a tuple of references
|
|
*/
|
|
class UtilTuple_test : public Test
|
|
{
|
|
|
|
void
|
|
run (Arg)
|
|
{
|
|
verify_unpackIterator();
|
|
}
|
|
|
|
|
|
/**
|
|
* @test unpack a sequence into a tuple of references,
|
|
* usable for structural binding.
|
|
*/
|
|
void
|
|
verify_unpackIterator()
|
|
{
|
|
VecI container = someNumbz (5);
|
|
RangeI iterator(container.begin(), container.end());
|
|
|
|
CHECK (not isnil (iterator));
|
|
auto tup = seqTuple<5> (iterator);
|
|
CHECK ( isnil (iterator)); // iterator was exhausted on unpacking...
|
|
CHECK (5 == tuple_size_v<decltype(tup)>);
|
|
|
|
auto& [g,f,e,d,c] = tup;
|
|
CHECK (c == 1);
|
|
CHECK (d == 2);
|
|
CHECK (e == 3);
|
|
CHECK (f == 4);
|
|
CHECK (g == 5);
|
|
|
|
g = 55; // we indeed got references...
|
|
CHECK (55 == std::get<0> (tup));
|
|
CHECK (55 == container.front());
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
LAUNCHER (UtilTuple_test, "unit common");
|
|
|
|
|
|
}} // namespace util::test
|
|
|