| /** |
| * \file |
| * |
| * \brief Recursion macro. |
| * |
| * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries. |
| * |
| * \asf_license_start |
| * |
| * \page License |
| * |
| * Subject to your compliance with these terms, you may use Microchip |
| * software and any derivatives exclusively with Microchip products. |
| * It is your responsibility to comply with third party license terms applicable |
| * to your use of third party software (including open source software) that |
| * may accompany Microchip software. |
| * |
| * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, |
| * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, |
| * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, |
| * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE |
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| * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE |
| * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE |
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| * |
| * \asf_license_stop |
| * |
| */ |
| |
| #ifndef _UTILS_RECURSION_MACRO_H |
| #define _UTILS_RECURSION_MACRO_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * \brief Macro recursion |
| * |
| * \param[in] macro Macro to be repeated recursively |
| * \param[in] arg A recursive threshold, building on this to decline by times |
| * defined with parameter n |
| * \param[in] n The number of repetitious calls to macro |
| */ |
| #define RECURSION_MACRO(macro, arg, n) RECURSION_MACRO_I(macro, arg, n) |
| |
| /* |
| * \brief Second level is needed to get integer literal from "n" if it is |
| * defined as macro |
| */ |
| #define RECURSION_MACRO_I(macro, arg, n) RECURSION##n(macro, arg) |
| |
| #define RECURSION0(macro, arg) |
| #define RECURSION1(macro, arg) RECURSION0(macro, DEC_VALUE(arg)) macro(arg, 0) |
| #define RECURSION2(macro, arg) RECURSION1(macro, DEC_VALUE(arg)) macro(arg, 1) |
| #define RECURSION3(macro, arg) RECURSION2(macro, DEC_VALUE(arg)) macro(arg, 2) |
| #define RECURSION4(macro, arg) RECURSION3(macro, DEC_VALUE(arg)) macro(arg, 3) |
| #define RECURSION5(macro, arg) RECURSION4(macro, DEC_VALUE(arg)) macro(arg, 4) |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #include <utils_decrement_macro.h> |
| #endif /* _UTILS_RECURSION_MACRO_H */ |