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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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.
*/
/**
* @file longBow_Compiler.h
* @ingroup compiling
* @brief LongBow compile time functionality.
*
*/
#ifndef LongBow_compiling_h
#define LongBow_compiling_h
/**
* @def LONGBOW_GNUC_EXACTLY
*
* Compile-time test to determine if the compiler is the GNU C compiler with the specfied
* version, revision and patch levels.
*
* @param [in] major The required major version number of the compiler.
* @param [in] minor The required minor version number of the compiler.
* @param [in] patch The required patch number of the compiler.
*
* @return true If the current compiler matches the requirements.
*
* Example:
* @code
* #if LONGBOW_GNUC_EXACTLY(4,2,1)
* printf("Hello GNU compiler 4.2.1\n");
* #endif
* @endcode
*
* @see LONGBOW_GNUC_ATLEAST
*/
#ifdef __GNUC__
# define LONGBOW_GNUC_EXACTLY(major, minor, patch) \
(__GNUC__ == major) && (__GNUC_MINOR__ = minor) && (__GNUC_PATCHLEVEL__ == patch)
#else
# define LONGBOW_GNUC_EXACTLY(major, minor, patch) \
(0)
#endif
/**
* @def LONGBOW_GNUC_ATLEAST
*
* Compile-time test to determine if the compiler is the GNU C compiler with at least the specfied
* version, revision and patch levels.
*
* @param [in] major The minimum required major version number of the compiler.
* @param [in] minor The minimum required minor version number of the compiler.
* @param [in] patch The minimum required patch number of the compiler.
*
* @return true If the current compiler matches the requirements.
* @return false If the current compiler fails to match the requirements.
*
* Example:
* @code
* #if LONGBOW_GNUC_ATLEAST(4,0,0)
* printf("Hello GNU compiler 4.x\n");
* #endif
* @endcode
*
* @see LONGBOW_GNUC_EXACTLY
*/
#ifdef __GNUC__
# define LONGBOW_GNUC_ATLEAST(major, minor, patch) \
(__GNUC__ >= major) && (__GNUC_MINOR__ > minor) && (__GNUC_PATCHLEVEL__ >= patch)
#else
# define LONGBOW_GNUC_ATLEAST(major, minor, patch) \
(0)
#endif
/**
* @def LONGBOW_CLANG_EXACTLY
*
* Compile-time test to determine if the compiler is the Clang C compiler with the specfied
* version, revision and patch levels.
*
* @param [in] major The required major version number of the compiler.
* @param [in] minor The required minor version number of the compiler.
* @param [in] patch The required patch number of the compiler.
*
* @return true If the current compiler matches the requirements.
*
* Example:
* @code
* #if LONGBOW_CLANG_EXACTLY(5,0,0)
* printf("Hello Clang 5.0.0\n");
* #endif
* @endcode
*
* @see LONGBOW_CLANG_ATLEAST
*/
#ifdef __clang__
# define LONGBOW_CLANG_EXACTLY(major, minor, patch) \
(__clang_major__ == major) && (__clang_major__ = minor) && (__clang_patchlevel__ == patch)
#else
# define LONGBOW_CLANG_EXACTLY(major, minor, patch) \
(0)
#endif
/**
* @def LONGBOW_CLANG_ATLEAST
*
* Compile-time test to determine if the compiler is the GNU C compiler with at least the specfied
* version, revision and patch levels.
*
* @param [in] major The minimum required major version number of the compiler.
* @param [in] minor The minimum required minor version number of the compiler.
* @param [in] patch The minimum required patch number of the compiler.
*
* @return true If the current compiler matches the requirements.
* @return false If the current compiler fails to match the requirements.
*
* Example:
* @code
* #if LONGBOW_CLANG_ATLEAST(5,0,0)
* printf("Hello Clang compiler 5.x\n");
* #endif
* @endcode
*
* @see LONGBOW_CLANG_EXACTLY
*/
#ifdef __clang__
# define LONGBOW_CLANG_ATLEAST(major, minor, patch) \
(__clang_major__ >= major) && (__clang_major__ > minor) && (__clang_patchlevel__ >= patch)
#else
# define LONGBOW_CLANG_ATLEAST(major, minor, patch) \
(0)
#endif
/**
* @def LONGBOW_START_DEPRECATED_WARNINGS
*
* Compile-time preprocessing to signal the compiler to not report the use of deprecated functions.
*
* Example:
* @code
* LONGBOW_STOP_DEPRECATED_WARNINGS
* someDeprecatedFunction();
* @endcode
*
* @see LONBOW_STOP_DEPRECATED_WARNINGS
*/
/**
* @def LONGBOW_STOP_DEPRECATED_WARNINGS
*
* Compile-time preprocessing to signal the compiler to report the use of deprecated functions.
*
* Example:
* @code
* LONGBOW_STOP_DEPRECATED_WARNINGS
* someDeprecatedFunction();
* @endcode
*
* @see LONBOW_START_DEPRECATED_WARNINGS
*/
#if LONGBOW_CLANG_ATLEAST(5, 0, 0) || LONGBOW_GNUC_ATLEAST(4, 6, 0)
# define LONGBOW_STOP_DEPRECATED_WARNINGS \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
# define LONGBOW_START_DEPRECATED_WARNINGS \
_Pragma("GCC diagnostic pop")
#elif __clang__ || __GNUC__
# define LONGBOW_STOP_DEPRECATED_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
# define LONGBOW_START_DEPRECATED_WARNINGS \
_Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
#else
# define LONGBOW_STOP_DEPRECATED_WARNINGS /* nothing */
# define LONGBOW_START_DEPRECATED_WARNINGS /* nothing */
#endif
/**
* @def LongBowCompiler_IgnoreInitializerOverrides
*
* Compile-time preprocessing to signal the compiler to not report the use of structure initializer overrides.
*
* Example:
* @code
* LongBowCompiler_IgnoreInitializerOverrides
* struct foo {
* int a;
* } instance = {
* .a = 1,
* .a = 1
* };
* LongBowCompiler_WarnInitializerOverrides
* @endcode
*
* @see LongBowCompiler_WarnInitializerOverrides
*/
#if LONGBOW_CLANG_ATLEAST(5, 0, 0)
# define LongBowCompiler_IgnoreInitializerOverrides \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Winitializer-overrides\"")
# define LongBowCompiler_WarnInitializerOverrides \
_Pragma("GCC diagnostic pop")
#elif LONGBOW_GNUC_ATLEAST(4, 6, 0)
# define LongBowCompiler_IgnoreInitializerOverrides \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Woverride-init\"")
# define LongBowCompiler_WarnInitializerOverrides \
_Pragma("GCC diagnostic pop")
#elif __clang__ || __GNUC__
# define LongBowCompiler_IgnoreInitializerOverrides \
_Pragma("GCC diagnostic ignored \"-Woverride-init\"")
# define LongBowCompiler_WarnInitializerOverrides \
_Pragma("GCC diagnostic warning \"-Woverride-init\"")
#else
# define LongBowCompiler_IgnoreInitializerOverrides /* nothing */
# define LongBowCompiler_WarnInitializerOverrides /* nothing */
#endif
/**
* @def LONGBOW_STOPWARNINGS_UnusedVariable
*
* Compile-time preprocessing to signal the compiler to report unused variables.
*
* Example:
* @code
* LONGBOW_STOPWARNINGS_UnusedVariable
* void
* foo(int unusedVariable)
* {
* return;
* }
* LONGBOW_STARTWARNINGS_UnusedVariable
* @endcode
*
* @see LONGBOW_STARTWARNINGS_UnusedVariable
*
* @def LONGBOW_STARTWARNINGS_UnusedVariable
*
* Compile-time preprocessing to signal the compiler to report unused variables.
*
* Example:
* @code
* LONGBOW_STOPWARNINGS_UnusedVariable
* void
* foo(int unusedVariable)
* {
* return;
* }
* LONGBOW_STARTWARNINGS_UnusedVariable
* @endcode
*
* @see LONGBOW_STARTWARNINGS_UnusedVariable
*/
#if LONGBOW_CLANG_ATLEAST(5, 0, 0)
# define LONGBOW_STOPWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
# define LONGBOW_STARTWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic pop")
#elif LONGBOW_GNUC_ATLEAST(4, 6, 0)
# define LONGBOW_STOPWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
# define LONGBOW_STARTWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic pop")
#elif __clang__ || __GNUC__
# define LONGBOW_STOPWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic ignored \"-Wunused-variable\"")
# define LONGBOW_STARTWARNINGS_UnusedVariable \
_Pragma("GCC diagnostic warning \"-Wunused-variable\"")
#else
# define LONGBOW_STOPWARNINGS_UnusedVariable /* nothing */
# define LONGBOW_STARTWARNINGS_UnusedVariable /* nothing */
#endif
#endif // LongBow_compiling_h
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