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70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
4 years ago
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/**
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* \file
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*
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* \brief Recursion macro.
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*
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* Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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#ifndef _UTILS_RECURSION_MACRO_H
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#define _UTILS_RECURSION_MACRO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* \brief Macro recursion
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*
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* \param[in] macro Macro to be repeated recursively
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* \param[in] arg A recursive threshold, building on this to decline by times
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* defined with parameter n
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* \param[in] n The number of repetitious calls to macro
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*/
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#define RECURSION_MACRO(macro, arg, n) RECURSION_MACRO_I(macro, arg, n)
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/*
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* \brief Second level is needed to get integer literal from "n" if it is
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* defined as macro
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*/
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#define RECURSION_MACRO_I(macro, arg, n) RECURSION##n(macro, arg)
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#define RECURSION0(macro, arg)
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#define RECURSION1(macro, arg) RECURSION0(macro, DEC_VALUE(arg)) macro(arg, 0)
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#define RECURSION2(macro, arg) RECURSION1(macro, DEC_VALUE(arg)) macro(arg, 1)
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#define RECURSION3(macro, arg) RECURSION2(macro, DEC_VALUE(arg)) macro(arg, 2)
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#define RECURSION4(macro, arg) RECURSION3(macro, DEC_VALUE(arg)) macro(arg, 3)
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#define RECURSION5(macro, arg) RECURSION4(macro, DEC_VALUE(arg)) macro(arg, 4)
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#ifdef __cplusplus
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}
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#endif
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#include <utils_decrement_macro.h>
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#endif /* _UTILS_RECURSION_MACRO_H */
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