utils.xx.c File Reference

several utility functions implementation. More...

#include <utils.h>
#include <memory.h>
#include <strings.h>
#include <random.h>

Functions
	MODULE ("turnstone.lib.utils")
number_t	power (number_t base, number_t p)
	power base with p
int8_t	ito_base_with_buffer (char_t *buffer, number_t number, number_t base)
	converts integer to string
int8_t	uto_base_with_buffer (char_t *buffer, unumber_t number, number_t base)
	converts unsigned integer to string
int8_t	fto_base_with_buffer (char_t *buffer, float64_t number, number_t prec, number_t base)
	converts float to string
uint8_t	byte_count (const uint64_t num)
uint64_t	read_memio (uint64_t va, uint8_t size)
void	write_memio (uint64_t va, uint64_t val, uint8_t size)
boolean_t	isalpha (char_t c)
boolean_t	isdigit (char_t c)
boolean_t	isalnum (char_t c)
boolean_t	isxdigit (char_t c)
boolean_t	islower (char_t c)
boolean_t	isupper (char_t c)
boolean_t	isspace (char_t c)
boolean_t	isprint (char_t c)
boolean_t	isgraph (char_t c)
boolean_t	iscntrl (char_t c)
boolean_t	ispunct (char_t c)
boolean_t	isblank (char_t c)
boolean_t	isascii (char_t c)
boolean_t	isalnumw (char_t c)
const char_t *	randstr (uint32_t len)

Detailed Description

several utility functions implementation.

This work is licensed under TURNSTONE OS Public License. Please read and understand latest version of Licence.

Function Documentation

fto_base_with_buffer()

int8_t fto_base_with_buffer	(	char_t *	buffer,
		float64_t	number,
		number_t	prec,
		number_t	base )

converts float to string

Parameters

[in]	buffer	destination buffer
[in]	number	to convert
[in]	base	to convert

Returns

0 if successed

buffer should be enough to take data. it's malloc free

ito_base_with_buffer()

int8_t ito_base_with_buffer	(	char_t *	buffer,
		number_t	number,
		number_t	base )

converts integer to string

Parameters

[in]	buffer	destination buffer
[in]	number	to convert
[in]	base	to convert

Returns

0 if successed

buffer should be enough to take data. it's malloc free

power()

number_t power	(	number_t	base,
		number_t	p )

power base with p

Parameters

[in]	base	the base
[in]	p	the power

Returns

base^p with fast power algorithm

uto_base_with_buffer()

int8_t uto_base_with_buffer	(	char_t *	buffer,
		unumber_t	number,
		number_t	base )

converts unsigned integer to string

Parameters

[in]	buffer	destination buffer
[in]	number	unsigned number to convert
[in]	base	to convert

Returns

0 if successed

buffer should be enough to take data. it's malloc free