UtilityLib - C Library code for general utility functions
project: utility_lib
url: http://github.com/noporpoise/UtilityLibrary/
author: Isaac Turner turner.isaac@gmail.com
license: BSD
copyright (C) 1-Oct-2012
To build the test code:
$ make
$ ./utility_test
To use in your code, include the following arguments in your gcc command:
UTIL_PATH = PATH/TO/utility_lib/
gcc ... -I$(UTIL_PATH) -L$(UTIL_PATH) ... -libutil
and include in your source code:
include "utility_lib.h"
Sort comparison functions
int cmp_int(const void *aa, const void *bb);
int cmp_uint(const void *aa, const void *bb);
int cmp_long(const void *aa, const void *bb);
int cmp_ulong(const void *aa, const void *bb);
Wrapper for qsort_r (GNU/BSD) and qsort_s (Windows)
void sort_r(void *base, size_t nel, size_t width,
int (*compar)(const void *, const void *, void *), void *arg);
Parse an integer value - exit with some error message err if value not a number.
long parse_int(char* value, const char* err);
Returns 1 if whole string is int, 0 otherwise
char parse_entire_int(const char *str, int *result);
char parse_entire_uint(const char *str, unsigned int *result);
char parse_entire_long(const char *str, long *result);
char parse_entire_ulong(const char *str, unsigned long *result);
char parse_entire_longlong(const char *str, long long *result);
char parse_entire_ulonglong(const char *str, unsigned long long *result);
Rounding up
int round_up_int(int num, int nearest);
unsigned int round_up_uint(unsigned int num, unsigned int nearest);
long round_up_long(long num, long nearest);
unsigned long round_up_ulong(unsigned long num, unsigned long nearest);
Count the number of digits in a long
unsigned int num_of_digits(unsigned long num);
Format numbers with commas e.g. 1234567 -> 1,234,567.
result must be at least: digits+floor((digits-1)/3)+1 chars long,
where digits = num_of_digits(num).
The longest result length needed is 27 (assuming ulong max is 2^64).
Terminates string with a '\0'.
void format_ulong(unsigned long num, char* result);
Print a formatted long to a stream e.g. 1234567 -> 1,234,567
void print_formatted_ulong(FILE *stream, unsigned long num);
Result should be at least 8 chars long (including '\0') ulong_max bytes is "16 EB" (Exabytes). Terminates string with a '\0'.
void bytes_to_str(unsigned long num, char* result);
Convert an int to a string of 0 or 1 characters
b must be at least 33 characters long
Terminates string with a '\0'.
void int_to_binary(int x, char *b);
Convert a long to a string of 0 or 1 characters
b must be at least 65 characters long
Terminates string with a '\0'.
void long_to_binary(long x, char *b);
Checks if anything is piping in
int stdin_is_ready();
Make a path same as mkdir -p $dir_path
char mkpath(const char *path, mode_t mode);
Copyright (c) 2012, Isaac Turner
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.
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 <COPYRIGHT HOLDER> 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.
Short term goals: none -- please suggest some
I like to hear about how you're using it, what bugs you've found and what features you'd like to see! Contact me: Isaac Turner turner.isaac@gmail