From 8f1ec1dfdf31d70561eb14ae89a2e6cf9291f521 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Mon, 21 Oct 2013 09:48:31 +0200 Subject: util/NumberParser: utilities for parsing numbers from ASCII strings --- src/util/NumberParser.hxx | 78 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/util/NumberParser.hxx (limited to 'src/util') diff --git a/src/util/NumberParser.hxx b/src/util/NumberParser.hxx new file mode 100644 index 000000000..2acfccfdd --- /dev/null +++ b/src/util/NumberParser.hxx @@ -0,0 +1,78 @@ +/* + * Copyright (C) 2009-2013 Max Kellermann + * http://www.musicpd.org + * + * 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. + * + * 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 + * FOUNDATION 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 NUMBER_PARSER_HXX +#define NUMBER_PARSER_HXX + +#include +#include +#include + +static inline unsigned +ParseUnsigned(const char *p, char **endptr=nullptr, int base=10) +{ + assert(p != nullptr); + + return (unsigned)strtoul(p, endptr, base); +} + +static inline int +ParseInt(const char *p, char **endptr=nullptr, int base=10) +{ + assert(p != nullptr); + + return (int)strtol(p, endptr, base); +} + +static inline uint64_t +ParseUint64(const char *p, char **endptr=nullptr, int base=10) +{ + assert(p != nullptr); + + return strtoull(p, endptr, base); +} + +static inline int64_t +ParseInt64(const char *p, char **endptr=nullptr, int base=10) +{ + assert(p != nullptr); + + return strtoll(p, endptr, base); +} + +static inline double +ParseDouble(const char *p, char **endptr=nullptr) +{ + assert(p != nullptr); + + return (double)strtod(p, endptr); +} + +#endif -- cgit v1.2.3