COMMS
Template library intended to help with implementation of communication protocols.
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include
comms
CompileControl.h
Go to the documentation of this file.
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//
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// Copyright 2015 - 2026 (C). Alex Robenko. All rights reserved.
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//
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// SPDX-License-Identifier: MPL-2.0
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#pragma once
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#ifdef __GNUC__
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#define GCC_DIAG_STR(s) #s
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#define GCC_DIAG_JOINSTR(x,y) GCC_DIAG_STR(x ## y)
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#define GCC_DIAG_DO_PRAGMA(x) _Pragma (#x)
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#define GCC_DIAG_PRAGMA(x) GCC_DIAG_DO_PRAGMA(GCC diagnostic x)
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#define CC_DISABLE_WARNINGS() \
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GCC_DIAG_PRAGMA(push) \
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GCC_DIAG_PRAGMA(ignored "-Wpedantic") \
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GCC_DIAG_PRAGMA(ignored "-Wctor-dtor-privacy")\
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GCC_DIAG_PRAGMA(ignored "-Wold-style-cast") \
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GCC_DIAG_PRAGMA(ignored "-Wconversion")
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#define CC_ENABLE_WARNINGS() GCC_DIAG_PRAGMA(pop)
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#define COMMS_GNU_WARNING_PUSH GCC_DIAG_PRAGMA(push)
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#define COMMS_GNU_WARNING_DISABLE(x_) GCC_DIAG_PRAGMA(ignored x_)
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#define COMMS_GNU_WARNING_POP GCC_DIAG_PRAGMA(pop)
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#else
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#define CC_DISABLE_WARNINGS()
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#define CC_ENABLE_WARNINGS()
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#define COMMS_GNU_WARNING_PUSH
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#define COMMS_GNU_WARNING_DISABLE(x_)
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#define COMMS_GNU_WARNING_POP
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#endif
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#define COMMS_IS_MSVC false
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#define COMMS_IS_GCC false
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#define COMMS_IS_CLANG false
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#define COMMS_IS_USING_GNUC false
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#if defined(__GNUC__)
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#undef COMMS_IS_USING_GNUC
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#define COMMS_IS_USING_GNUC true
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#endif
// #if defined(__GNUC__) && !defined(__clang__)
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#if defined(_MSC_VER) && !defined(__clang__)
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#undef COMMS_IS_MSVC
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#define COMMS_IS_MSVC true
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#endif
// #if defined(_MSC_VER) && !defined(__clang__)
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#if defined(__GNUC__) && !defined(__clang__)
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#undef COMMS_IS_GCC
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#define COMMS_IS_GCC true
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#endif
// #if defined(__GNUC__) && !defined(__clang__)
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#if defined(__clang__)
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#undef COMMS_IS_CLANG
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#define COMMS_IS_CLANG true
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#endif
// #if defined(__clang__)
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#define COMMS_IS_GCC_47_OR_BELOW (COMMS_IS_GCC && (__GNUC__ == 4) && (__GNUC_MINOR__ < 8))
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#define COMMS_IS_GCC_9 (COMMS_IS_GCC && (__GNUC__ == 9))
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#define COMMS_IS_GCC_9_OR_BELOW (COMMS_IS_GCC_9 && (__GNUC__ <= 9))
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#define COMMS_IS_GCC_9_OR_ABOVE (COMMS_IS_GCC_9 && (__GNUC__ >= 9))
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#define COMMS_IS_GCC_10 (COMMS_IS_GCC && (__GNUC__ == 10))
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#define COMMS_IS_GCC_10_OR_ABOVE (COMMS_IS_GCC && (__GNUC__ >= 10))
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#define COMMS_IS_GCC_10_OR_BELOW (COMMS_IS_GCC && (__GNUC__ <= 10))
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#define COMMS_IS_GCC_11 (COMMS_IS_GCC && (__GNUC__ == 11))
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#define COMMS_IS_GCC_11_OR_ABOVE (COMMS_IS_GCC && (__GNUC__ >= 11))
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#define COMMS_IS_GCC_12 (COMMS_IS_GCC && (__GNUC__ == 12))
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#define COMMS_IS_GCC_12_OR_ABOVE (COMMS_IS_GCC && (__GNUC__ >= 12))
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#define COMMS_IS_GCC_13 (COMMS_IS_GCC && (__GNUC__ == 13))
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#define COMMS_IS_GCC_14 (COMMS_IS_GCC && (__GNUC__ == 14))
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#define COMMS_IS_GCC_14_OR_BELOW (COMMS_IS_GCC && (__GNUC__ <= 14))
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#define COMMS_IS_CLANG_7_OR_ABOVE (COMMS_IS_CLANG && (__clang_major__ >= 7))
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#define COMMS_IS_CLANG_8 (COMMS_IS_CLANG && (__clang_major__ == 8))
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#define COMMS_IS_CLANG_8_OR_BELOW (COMMS_IS_CLANG && (__clang_major__ <= 8))
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#define COMMS_IS_CLANG_9_OR_BELOW (COMMS_IS_CLANG && (__clang_major__ <= 9))
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#define COMMS_IS_CLANG_9_OR_ABOVE (COMMS_IS_CLANG && (__clang_major__ >= 9))
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#define COMMS_IS_CLANG_16_OR_ABOVE (COMMS_IS_CLANG && (__clang_major__ >= 16))
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#define COMMS_IS_CLANG_18_OR_BELOW (COMMS_IS_CLANG && (__clang_major__ <= 18))
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#define COMMS_IS_CLANG_19_OR_BELOW (COMMS_IS_CLANG && (__clang_major__ <= 19))
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#define COMMS_IS_MSVC_2026 (COMMS_IS_MSVC && (_MSC_VER >= 1945) && (_MSC_VER < 1949))
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#define COMMS_IS_MSVC_2026_OR_BELOW (COMMS_IS_MSVC && (_MSC_VER < 1949))
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#define COMMS_IS_MSVC_2025 (COMMS_IS_MSVC && (_MSC_VER >= 1940) && (_MSC_VER < 1945))
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#define COMMS_IS_MSVC_2025_OR_BELOW (COMMS_IS_MSVC && (_MSC_VER < 1945))
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#define COMMS_IS_MSVC_2022 (COMMS_IS_MSVC && (_MSC_VER >= 1930) && (_MSC_VER < 1940))
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#define COMMS_IS_MSVC_2019 (COMMS_IS_MSVC && (_MSC_VER >= 1920) && (_MSC_VER < 1930))
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#define COMMS_IS_MSVC_2019_OR_BELOW (COMMS_IS_MSVC && (_MSC_VER < 1930))
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#define COMMS_IS_MSVC_2017_OR_BELOW (COMMS_IS_MSVC && (_MSC_VER < 1920))
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#define COMMS_IS_MSVC_2015_OR_BELOW (COMMS_IS_MSVC && (_MSC_VER < 1910))
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#if !defined(COMMS_COMPILER_GCC47) && COMMS_IS_GCC_47_OR_BELOW
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#define COMMS_COMPILER_GCC47
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#endif
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#define COMMS_IS_CPP14 (__cplusplus >= 201402L)
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#define COMMS_IS_CPP17 (__cplusplus >= 201703L)
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#define COMMS_IS_CPP20 (__cplusplus >= 202002L)
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#define COMMS_IS_CPP23 (__cplusplus >= 202302L)
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#if COMMS_IS_MSVC_2025_OR_BELOW
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#undef COMMS_IS_CPP23
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#define COMMS_IS_CPP23 (__cplusplus >= 202003L)
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#endif
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#if COMMS_IS_MSVC_2019_OR_BELOW
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#undef COMMS_IS_CPP20
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#define COMMS_IS_CPP20 (__cplusplus >= 201704L)
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#endif
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#if COMMS_IS_GCC_10_OR_BELOW
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#undef COMMS_IS_CPP20
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#define COMMS_IS_CPP20 (__cplusplus >= 201709L)
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#endif
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#if COMMS_IS_CLANG_9_OR_BELOW
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#undef COMMS_IS_CPP20
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#define COMMS_IS_CPP20 (__cplusplus >= 201709L)
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#endif
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#if COMMS_IS_CLANG_8_OR_BELOW
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#undef COMMS_IS_CPP20
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#define COMMS_IS_CPP20 (__cplusplus >= 201707L)
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#endif
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#define COMMS_CLANG_HAS_STRING_VIEW false
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#define COMMS_CLANG_HAS_VERSION_HEADER false
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#if COMMS_IS_CLANG
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// The defines below are seperate because VS2015 doesn't
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// behave well with angle brackets inside macro arguments.
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#undef COMMS_CLANG_HAS_STRING_VIEW
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#define COMMS_CLANG_HAS_STRING_VIEW (__has_include(<string_view>))
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#undef COMMS_CLANG_HAS_VERSION_HEADER
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#define COMMS_CLANG_HAS_VERSION_HEADER (__has_include(<version>))
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#endif
// #if COMMS_IS_CLANG
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#define COMMS_HAS_CPP20_VERSION_HEADER \
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COMMS_IS_CPP20 && \
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(\
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(COMMS_IS_USING_GNUC && (__GNUC__ >= 9)) || \
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(COMMS_IS_CLANG && COMMS_CLANG_HAS_VERSION_HEADER) || \
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(COMMS_IS_MSVC && (_MSC_VER >= 1922)) \
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)
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#if COMMS_HAS_CPP20_VERSION_HEADER
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#include <version>
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#endif
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#define COMMS_HAS_CPP17_STRING_VIEW false
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#ifndef COMMS_NO_CPP17_STRING_VIEW
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#undef COMMS_HAS_CPP17_STRING_VIEW
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#define COMMS_HAS_CPP17_STRING_VIEW \
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COMMS_IS_CPP17 && \
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(\
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(COMMS_IS_USING_GNUC && (__GNUC__ >= 7)) || \
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(COMMS_IS_CLANG && COMMS_CLANG_HAS_STRING_VIEW) || \
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(COMMS_IS_MSVC && (_MSC_VER >= 1910)) \
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)
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#endif
// #ifndef COMMS_NO_CPP17_STRING_VIEW
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#define COMMS_HAS_CPP20_SPAN false
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#if !defined(COMMS_NO_CPP20_SPAN) && COMMS_IS_CPP20 && defined(__cpp_lib_span)
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#undef COMMS_HAS_CPP20_SPAN
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#define COMMS_HAS_CPP20_SPAN true
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#endif
// #if COMMS_IS_CPP20 && defined(__cpp_lib_span)
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#if COMMS_IS_MSVC
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#define COMMS_MSVC_WARNING_PRAGMA(s_) __pragma(s_)
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#define COMMS_MSVC_WARNING_PUSH __pragma(warning(push))
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#define COMMS_MSVC_WARNING_POP __pragma(warning(pop))
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#define COMMS_MSVC_WARNING_DISABLE(w_) __pragma(warning(disable:w_))
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#define COMMS_MSVC_WARNING_SUPPRESS(w_) __pragma(warning(suppress:w_))
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#else
// #if COMMS_IS_MSVC
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#define COMMS_MSVC_WARNING_PRAGMA(s_)
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#define COMMS_MSVC_WARNING_PUSH
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#define COMMS_MSVC_WARNING_POP
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#define COMMS_MSVC_WARNING_DISABLE(w_)
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#define COMMS_MSVC_WARNING_SUPPRESS(w_)
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#endif
// #if COMMS_IS_MSVC
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