Program Listing for File macros.h
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <cstdint>
#include "opentelemetry/version.h"
#if defined(__cplusplus) && __cplusplus >= 201703L
# define OPENTELEMETRY_MAYBE_UNUSED [[maybe_unused]]
#elif defined(__clang__)
# define OPENTELEMETRY_MAYBE_UNUSED __attribute__((unused))
#elif defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
# define OPENTELEMETRY_MAYBE_UNUSED __attribute__((unused))
#elif (defined(_MSC_VER) && _MSC_VER >= 1910) && (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
# define OPENTELEMETRY_MAYBE_UNUSED [[maybe_unused]]
#else
# define OPENTELEMETRY_MAYBE_UNUSED
#endif
#ifndef OPENTELEMETRY_RTTI_ENABLED
# if defined(__clang__)
# if __has_feature(cxx_rtti)
# define OPENTELEMETRY_RTTI_ENABLED
# endif
# elif defined(__GNUG__)
# if defined(__GXX_RTTI)
# define OPENTELEMETRY_RTTI_ENABLED
# endif
# elif defined(_MSC_VER)
# if defined(_CPPRTTI)
# define OPENTELEMETRY_RTTI_ENABLED
# endif
# endif
#endif