/* * Copyright (c) 2012 Adam Hraska * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef DOUBLE_TO_STR_H_ #define DOUBLE_TO_STR_H_ #include <stddef.h> /** Maximum number of digits double_to_*_str conversion functions produce. * * Both double_to_short_str and double_to_fixed_str generate digits out * of a 64bit unsigned int number representation. The max number of * of digits is therefore 20. Add 1 to help users who forget to reserve * space for a null terminator. */ #define MAX_DOUBLE_STR_LEN (20 + 1) /** Maximum buffer size needed to store the output of double_to_*_str * functions. */ #define MAX_DOUBLE_STR_BUF_SIZE 21 /* Fwd decl. */ struct ieee_double_t_tag; extern int double_to_short_str(struct ieee_double_t_tag, char *, size_t, int *); extern int double_to_fixed_str(struct ieee_double_t_tag, int, int, char *, size_t, int *); #endif