tinySA/os/various/chprintf.h

/*
    ChibiOS - Copyright (C) 2006-2014 Giovanni Di Sirio

    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    chprintf.h
 * @brief   Mini printf-like functionality.
 *
 * @addtogroup chprintf
 * @{
 */

#ifndef _CHPRINTF_H_
#define _CHPRINTF_H_

#include <stdarg.h>

/**
 * @brief   Float type support.
 */
#if !defined(CHPRINTF_USE_FLOAT) || defined(__DOXYGEN__)
#define CHPRINTF_USE_FLOAT          FALSE
#endif

#ifdef __cplusplus
extern "C" {
#endif
  int chvprintf(BaseSequentialStream *chp, const char *fmt, va_list ap);
  int chsnprintf(char *str, size_t size, const char *fmt, ...);
#ifdef __cplusplus
}
#endif

/**
 * @brief   System formatted output function.
 * @details This function implements a minimal @p printf() like functionality
 *          with output on a @p BaseSequentialStream.
 *          The general parameters format is: %[-][width|*][.precision|*][l|L]p.
 *          The following parameter types (p) are supported:
 *          - <b>x</b> hexadecimal integer.
 *          - <b>X</b> hexadecimal long.
 *          - <b>o</b> octal integer.
 *          - <b>O</b> octal long.
 *          - <b>d</b> decimal signed integer.
 *          - <b>D</b> decimal signed long.
 *          - <b>u</b> decimal unsigned integer.
 *          - <b>U</b> decimal unsigned long.
 *          - <b>c</b> character.
 *          - <b>s</b> string.
 *          .
 *
 * @param[in] chp       pointer to a @p BaseSequentialStream implementing object
 * @param[in] fmt       formatting string
 *
 * @api
 */
static inline int chprintf(BaseSequentialStream *chp, const char *fmt, ...) {
  va_list ap;
  int formatted_bytes;

  va_start(ap, fmt);
  formatted_bytes = chvprintf(chp, fmt, ap);
  va_end(ap);

  return formatted_bytes;
}

#endif /* _CHPRINTF_H_ */

/** @} */