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/*
* mptBaseMacros.h
* ---------------
* Purpose: Basic assorted compiler-related helpers.
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#pragma once
#include "openmpt/all/BuildSettings.hpp"
#include "mpt/base/preprocessor.hpp"
#include "mpt/base/compiletime_warning.hpp"
#include "mpt/base/macros.hpp"
#if MPT_CXX_AT_LEAST(20)
#include <version>
#else // !C++20
#include <array>
#endif // C++20
#include <array>
#include <iterator>
#include <type_traits>
#include <cstddef>
#include <cstdint>
#include <stddef.h>
#include <stdint.h>
OPENMPT_NAMESPACE_BEGIN
#define MPT_UNREFERENCED_PARAMETER(x) MPT_UNUSED(x)
#define MPT_UNUSED_VARIABLE(x) MPT_UNUSED(x)
#if MPT_COMPILER_MSVC
// warning LNK4221: no public symbols found; archive member will be inaccessible
// There is no way to selectively disable linker warnings.
// #pragma warning does not apply and a command line option does not exist.
// Some options:
// 1. Macro which generates a variable with a unique name for each file (which means we have to pass the filename to the macro)
// 2. unnamed namespace containing any symbol (does not work for c++11 compilers because they actually have internal linkage now)
// 3. An unused trivial inline function.
// Option 3 does not actually solve the problem though, which leaves us with option 1.
// In any case, for optimized builds, the linker will just remove the useless symbol.
#define MPT_MSVC_WORKAROUND_LNK4221_CONCAT_DETAIL(x,y) x##y
#define MPT_MSVC_WORKAROUND_LNK4221_CONCAT(x,y) MPT_MSVC_WORKAROUND_LNK4221_CONCAT_DETAIL(x,y)
#define MPT_MSVC_WORKAROUND_LNK4221(x) int MPT_MSVC_WORKAROUND_LNK4221_CONCAT(mpt_msvc_workaround_lnk4221_,x) = 0;
#endif
#ifndef MPT_MSVC_WORKAROUND_LNK4221
#define MPT_MSVC_WORKAROUND_LNK4221(x)
#endif
OPENMPT_NAMESPACE_END
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