mirror of
https://github.com/espressif/esp-idf.git
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83 lines
2.9 KiB
C++
83 lines
2.9 KiB
C++
/*
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* SPDX-FileCopyrightText: 2016-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "sdkconfig.h"
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/*
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* The likely and unlikely macro pairs:
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* These macros are useful to place when application
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* knows the majority occurrence of a decision paths,
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* placing one of these macros can hint the compiler
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* to reorder instructions producing more optimized
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* code.
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*/
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#if (CONFIG_COMPILER_OPTIMIZATION_PERF)
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#ifndef likely
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#define likely(x) __builtin_expect(!!(x), 1)
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#endif
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#ifndef unlikely
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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#else
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#ifndef likely
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#define likely(x) (x)
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#endif
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#ifndef unlikely
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#define unlikely(x) (x)
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#endif
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#endif
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/*
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* Utility macros used for designated initializers, which work differently
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* in C99 and C++ standards mainly for aggregate types.
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* The member separator, comma, is already part of the macro, please omit the trailing comma.
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* Usage example:
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* struct config_t { char* pchr; char arr[SIZE]; } config = {
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* ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(pchr)
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* ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(arr, "Value")
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* };
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*/
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#if defined(__cplusplus) && __cplusplus >= 202002L
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(member, value) .member = value,
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(member) .member = { },
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#elif defined(__cplusplus) && __cplusplus < 202002L
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(member, value) { .member = value },
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(member) .member = { },
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#else
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(member, value) .member = value,
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#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(member)
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#endif
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#define __COMPILER_PRAGMA__(string) _Pragma(#string)
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#define _COMPILER_PRAGMA_(string) __COMPILER_PRAGMA__(string)
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#if __clang__
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#define ESP_COMPILER_DIAGNOSTIC_PUSH_IGNORE(warning) \
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__COMPILER_PRAGMA__(clang diagnostic push) \
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__COMPILER_PRAGMA__(clang diagnostic ignored "-Wunknown-warning-option") \
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__COMPILER_PRAGMA__(clang diagnostic ignored warning)
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#define ESP_COMPILER_DIAGNOSTIC_POP(warning) \
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__COMPILER_PRAGMA__(clang diagnostic pop)
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#elif __GNUC__
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#define ESP_COMPILER_DIAGNOSTIC_PUSH_IGNORE(warning) \
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__COMPILER_PRAGMA__(GCC diagnostic push) \
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__COMPILER_PRAGMA__(GCC diagnostic ignored "-Wpragmas") \
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__COMPILER_PRAGMA__(GCC diagnostic ignored warning)
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#define ESP_COMPILER_DIAGNOSTIC_POP(warning) \
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__COMPILER_PRAGMA__(GCC diagnostic pop)
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#else
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#define ESP_COMPILER_DIAGNOSTIC_PUSH_IGNORE(warning)
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#define ESP_COMPILER_DIAGNOSTIC_POP(warning)
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#endif
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#if __clang_analyzer__ || CONFIG_COMPILER_STATIC_ANALYZER
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#define ESP_STATIC_ANALYZER_CHECK(_expr_, _ret_) do { if ((_expr_)) { return (_ret_); } } while(0)
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#else
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#define ESP_STATIC_ANALYZER_CHECK(_expr_, _ret_)
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#endif
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