compiler_builtins.h

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/*
 * Copyright 2021 MusicScience37 (Kenta Kabashima)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
// IWYU pragma: no_include <string_view>
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION macro.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION 1
 
#elif defined(_MSC_VER)
 
// on MSVC
#if _MSC_VER >= 1929
// Visual Studio 2019 16.10 and later supports source location.
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION 1
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION 0
#endif
 
#else
 
// Other than MSVC.
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION 0
 
#endif
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_BUILTIN macro.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_BUILTIN(NAME) __has_builtin(NAME)
 
#elif defined(__has_builtin)
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN(NAME) __has_builtin(NAME)
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN(NAME) 0
#endif
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_BUILTIN_FILE, NUM_COLLECT_BUILTIN_FILE macros.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_BUILTIN_FILE 1
 
#define NUM_COLLECT_BUILTIN_FILE() __builtin_FILE()
 
#elif NUM_COLLECT_HAS_BUILTIN(__builtin_FILE) || \
    NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_FILE 1
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_FILE() __builtin_FILE()
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_FILE 0
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_FILE() static_cast<const char*>("")
#endif
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_BUILTIN_FUNCTION, NUM_COLLECT_BUILTIN_FUNCTION macros.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_BUILTIN_FUNCTION 1
 
#define NUM_COLLECT_BUILTIN_FUNCTION() __builtin_FUNCTION()
 
#elif NUM_COLLECT_HAS_BUILTIN(__builtin_FUNCTION) || \
    NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_FUNCTION 1
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_FUNCTION() __builtin_FUNCTION()
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_FUNCTION 0
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_FUNCTION() static_cast<const char*>("")
#endif
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_BUILTIN_LINE, NUM_COLLECT_BUILTIN_LINE macros.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_BUILTIN_LINE 1
 
#define NUM_COLLECT_BUILTIN_LINE() __builtin_LINE()
 
#elif NUM_COLLECT_HAS_BUILTIN(__builtin_LINE) || \
    NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_LINE 1
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_LINE() __builtin_LINE()
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_LINE 0
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_LINE() 0
#endif
 
/* ***********************************************************************
 * NUM_COLLECT_HAS_BUILTIN_COLUMN, NUM_COLLECT_BUILTIN_COLUMN macros.
 * ***********************************************************************/
 
#if defined(NUM_COLLECT_DOCUMENTATION)
 
#define NUM_COLLECT_HAS_BUILTIN_COLUMN 1
 
#define NUM_COLLECT_BUILTIN_COLUMN() __builtin_COLUMN()
 
#elif NUM_COLLECT_HAS_BUILTIN(__builtin_COLUMN) || \
    NUM_COLLECT_HAS_MSVC_SOURCE_LOCATION
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_COLUMN 1
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_COLUMN() __builtin_COLUMN()
#else
// NOLINTNEXTLINE
#define NUM_COLLECT_HAS_BUILTIN_COLUMN 0
// NOLINTNEXTLINE
#define NUM_COLLECT_BUILTIN_COLUMN() 0
#endif