rt-thread/bsp/avr32/software_framework/utils/preprocessor/stringz.h

/*****************************************************************************
 *
 * \file
 *
 * \brief Preprocessor stringizing utils.
 *
 * 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.
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 * to your use of third party software (including open source software) that
 * may accompany Microchip software.
 *
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 * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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 ******************************************************************************/
/*
 * Support and FAQ: visit <a href="https://www.microchip.com/support/">Microchip Support</a>
 */


#ifndef _STRINGZ_H_
#define _STRINGZ_H_

/**
 * \defgroup group_avr32_utils_stringz Preprocessor - Stringize
 *
 * \ingroup group_avr32_utils
 *
 * \{
 */

/*! \brief Stringize.
 *
 * Stringize a preprocessing token, this token being allowed to be \#defined.
 *
 * May be used only within macros with the token passed as an argument if the token is \#defined.
 *
 * For example, writing STRINGZ(PIN) within a macro \#defined by PIN_NAME(PIN)
 * and invoked as PIN_NAME(PIN0) with PIN0 \#defined as A0 is equivalent to
 * writing "A0".
 */
#define STRINGZ(x)                                #x

/*! \brief Absolute stringize.
 *
 * Stringize a preprocessing token, this token being allowed to be \#defined.
 *
 * No restriction of use if the token is \#defined.
 *
 * For example, writing ASTRINGZ(PIN0) anywhere with PIN0 \#defined as A0 is
 * equivalent to writing "A0".
 */
#define ASTRINGZ(x)                               STRINGZ(x)

/**
 * \}
 */

#endif  // _STRINGZ_H_