utils.h File Reference

Miscellaneous utility functions that don't fit anywhere else. More...

Functions
char *	uint32_to_str (uint32_t val)
	Safely convert an unsigned integer to a NULL-terminated string. More...
char *	int_to_str (int val)
	Safely convert a signed integer to a NULL-terminated string. More...
char *	double_to_str (double val)
	Safely convert a signed double to a NULL-terminated string. More...
uint32_t	float_to_uint32 (float f)
	Encode an ieee754 float as a uint32_t (4 bytes). More...
float	uint32_to_float (uint32_t i)
	Decocde an ieee754 float from a 4-byte unsigned int. More...
char *	selector_get_prefix (const char *selector)
	Returns the largest non-regexp part of a topic selector. More...

Detailed Description

Miscellaneous utility functions that don't fit anywhere else.

Copyright © 2014, 2015 Push Technology Ltd., All Rights Reserved.

Use is subject to license terms.

NOTICE: All information contained herein is, and remains the property of Push Technology. The intellectual and technical concepts contained herein are proprietary to Push Technology and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade secret or copyright law.

Function Documentation

char* double_to_str

(

double

val

)

Safely convert a signed double to a NULL-terminated string.

The "float" format specifier is used. The caller should free the return value after use.

Parameters

val	The signed double to convert.

Returns

A NULL-terminated string or NULL if the conversion failed.

uint32_t float_to_uint32

(

float

f

)

Encode an ieee754 float as a uint32_t (4 bytes).

Parameters

f	Float to encode

Returns

A uint32_t

char* int_to_str

(

int

val

)

Safely convert a signed integer to a NULL-terminated string.

The caller should free the return value after use.

Parameters

val	The signed integer to convert.

Returns

A NULL-terminated string or NULL if the conversion failed.

char* selector_get_prefix

(

const char *

selector

)

Returns the largest non-regexp part of a topic selector.

Parameters

selector

The topic selector to analyse.

Returns

A pointer to a char array, which should be freed by the caller.

float uint32_to_float

(

uint32_t

i

)

Decocde an ieee754 float from a 4-byte unsigned int.

Parameters

i	uint32_t containing IEEE754-encoded data.

Returns

A float

char* uint32_to_str

(

uint32_t

val

)

Safely convert an unsigned integer to a NULL-terminated string.

The caller should free the return value after use.

Parameters

val	The unsigned integer to convert.

Return values

A	NULL-terminated string or NULL if the conversion failed.