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atoi-gen.h
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/* Copyright (c) 2013-2016, David Hauweele <david@hauweele.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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 _ATOI_GEN_H_
#define _ATOI_GEN_H_
#include <stdbool.h>
/* This generic atoi function understand number written in different bases. By
default it will assume a decimal base. If the string is prefixed with 0x or
0X it will assume an hexadecimal base. If the string is prefixed with 0b or
0B it will assume a binary base. If the string is prefixed with a 0 it will
assume an octal base. Leading and trailing spaces are ignored. There isn't
any error checking and the result may be incorrect in case of overflow or
incorrect symbols for the choosen base. For an error aware generic converter
you may use strtol_gen instead (not implemented yet). */
int atoi_gen(const char *s);
/* This function will parse an hexadecimal string stopping at the first
occurence of a character in the delim string. It will then the value parsed
until this delimiter in the v argument and return a pointer to the delimiter
in the string. If the accept_zero flag is specified, the null terminator will
be accepted as a valid delimiter. Otherwise an error will be reported. This
function will also check for valid hexadecimal characters and will report an
error if the character is invalid. */
const char * parse_hex_until(const char *s, const char *delim,
unsigned int *v, const char *error_message,
bool accept_zero);
#endif /* _ATOI_GEN_H_ */