208 lines
8.2 KiB
C++
208 lines
8.2 KiB
C++
/* dt_cxxlib.cpp -- doctest check
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This file is part of the UPX executable compressor.
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Copyright (C) 1996-2023 Markus Franz Xaver Johannes Oberhumer
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All Rights Reserved.
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UPX and the UCL library are free software; you can redistribute them
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and/or modify them under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Markus F.X.J. Oberhumer
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<markus@oberhumer.com>
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*/
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#include "../conf.h"
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/*************************************************************************
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// compile-time checks
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**************************************************************************/
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// need extra parenthesis because the C preprocessor does not understand C++ templates
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_all_v<int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_all_v<int, int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_all_v<int, int, int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_all_v<int, char>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_all_v<int, char, int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_all_v<int, int, char>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_any_v<int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_any_v<int, int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_any_v<int, char, int>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((upx::is_same_any_v<int, int, char>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_any_v<int, char>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_any_v<int, char, char>) )
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ACC_COMPILE_TIME_ASSERT_HEADER((!upx::is_same_any_v<int, char, long>) )
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(int) == sizeof(int))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof('a') == sizeof(char))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof("") == 1)
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof("a") == 2)
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(0) == sizeof(int))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(0L) == sizeof(long))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(0LL) == sizeof(long long))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(nullptr) == sizeof(void *))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(sizeof(0)) == sizeof(size_t))
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ACC_COMPILE_TIME_ASSERT_HEADER(usizeof(usizeof(0)) == sizeof(unsigned))
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namespace compile_time = upx::compile_time;
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_len("") == 0)
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_len("a") == 1)
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_len("ab") == 2)
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_len("abc") == 3)
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_eq("", ""))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_eq("a", ""))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_eq("", "a"))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_eq("abc", "abc"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_eq("ab", "abc"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_eq("abc", "ab"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_lt("", ""))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_lt("a", ""))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_lt("", "a"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_lt("abc", "abc"))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_lt("ab", "abc"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_lt("abc", "ab"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_lt("abc", "aba"))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_lt("abc", "abz"))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_ne("abc", "abz"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_gt("abc", "abz"))
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ACC_COMPILE_TIME_ASSERT_HEADER(!compile_time::string_ge("abc", "abz"))
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ACC_COMPILE_TIME_ASSERT_HEADER(compile_time::string_le("abc", "abz"))
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/*************************************************************************
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// util
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**************************************************************************/
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TEST_CASE("noncopyable") {
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struct Test : private upx::noncopyable {
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int v = 1;
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};
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Test t = {};
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CHECK(t.v == 1);
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#if (ACC_CC_MSC) // MSVC thinks that Test is not std::is_trivially_copyable; true or compiler bug?
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// @COMPILER_BUG @MSVC_BUG
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t.v = 0;
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#else
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mem_clear(&t);
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#endif
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CHECK(t.v == 0);
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constexpr Test x = {};
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static_assert(x.v == 1);
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}
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/*************************************************************************
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// TriBool
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**************************************************************************/
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namespace {
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template <class T>
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struct TestTriBool {
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static void test(bool expect_true, int x) noexcept {
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static_assert(std::is_class<T>::value);
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static_assert(std::is_nothrow_default_constructible<T>::value);
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static_assert(std::is_nothrow_destructible<T>::value);
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static_assert(std::is_standard_layout<T>::value);
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static_assert(std::is_trivially_copyable<T>::value);
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static_assert(sizeof(typename T::value_type) == sizeof(typename T::underlying_type));
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static_assert(alignof(typename T::value_type) == alignof(typename T::underlying_type));
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#if (ACC_ARCH_M68K && ACC_OS_TOS && ACC_CC_GNUC) && defined(__MINT__)
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// broken compiler or broken ABI
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#else
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static_assert(sizeof(T) == sizeof(typename T::underlying_type));
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static_assert(alignof(T) == alignof(typename T::underlying_type));
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#endif
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static_assert(T(false) == T::False);
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static_assert(T(true) == T::True);
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static_assert(T(T::False) == T::False);
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static_assert(T(T::True) == T::True);
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static_assert(T(T::Third) == T::Third);
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static_assert(T(T::Third) == T(9));
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static_assert(T(8) == T(9));
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static_assert(!(T(0) == T(9)));
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static_assert(!(T(1) == T(9)));
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static_assert(T(T::Third) == 9);
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static_assert(T(8) == 9);
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static_assert(!(T(0) == 9));
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static_assert(!(T(1) == 9));
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constexpr T array[] = {false, true, T::Third};
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static_assert(array[0].isStrictFalse());
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static_assert(array[1].isStrictTrue());
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static_assert(array[2].isThird());
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static_assert(sizeof(array) == 3 * sizeof(T));
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T a;
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CHECK(!a);
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CHECK(a.isStrictFalse());
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CHECK(!a.isStrictTrue());
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CHECK(a.isStrictBool());
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CHECK(!a.isThird());
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a = false;
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CHECK(!a);
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CHECK(a.isStrictFalse());
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CHECK(!a.isStrictTrue());
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CHECK(a.isStrictBool());
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CHECK(!a.isThird());
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a = true;
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CHECK(a);
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CHECK(!a.isStrictFalse());
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CHECK(a.isStrictTrue());
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CHECK(a.isStrictBool());
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CHECK(!a.isThird());
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a = T::Third;
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if (expect_true)
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CHECK(a);
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else
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CHECK(!a);
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CHECK(!a.isStrictFalse());
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CHECK(!a.isStrictTrue());
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CHECK(!a.isStrictBool());
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CHECK(a.isThird());
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a = x;
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if (expect_true)
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CHECK(a);
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else
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CHECK(!a);
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CHECK(!a.isStrictFalse());
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CHECK(!a.isStrictTrue());
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CHECK(!a.isStrictBool());
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CHECK(a.isThird());
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mem_clear(&a);
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CHECK(a.isStrictFalse());
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}
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};
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} // namespace
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TEST_CASE("TriBool") {
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using upx::TriBool, upx::tribool;
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//
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static_assert(!tribool(false));
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static_assert(tribool(true));
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static_assert(!tribool(tribool::Third));
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TestTriBool<tribool>::test(false, -1);
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//
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TestTriBool<TriBool<upx_int8_t> >::test(false, -1);
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TestTriBool<TriBool<upx_int64_t> >::test(false, -1);
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//
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TestTriBool<TriBool<unsigned, 2> >::test(true, 2);
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TestTriBool<TriBool<upx_int8_t, 2> >::test(true, 2);
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TestTriBool<TriBool<upx_uint8_t, 2> >::test(true, 2);
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TestTriBool<TriBool<upx_int64_t, 2> >::test(true, 2);
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TestTriBool<TriBool<upx_uint64_t, 2> >::test(true, 2);
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}
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/* vim:set ts=4 sw=4 et: */
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