find.h File Reference

#include "rcutils/types.h"
#include "rcutils/visibility_control.h"

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Functions
size_t	rcutils_find (const char *str, char delimiter)
	Return the first index of a character in a string. More...
size_t	rcutils_findn (const char *str, char delimiter, size_t string_length)
	Return the first index of a character in a string of specified length. More...
size_t	rcutils_find_last (const char *str, char delimiter)
	Return the last index of a character in a string. More...
size_t	rcutils_find_lastn (const char *str, char delimiter, size_t string_length)
	Return the last index of a character in a string of specifed length. More...

Function Documentation

rcutils_find()

size_t rcutils_find	(	const char *	str,
		char	delimiter
	)

Return the first index of a character in a string.

Search in a string for the first occurence of a delimiter.

Parameters

[in]	str	null terminated c string to search
[in]	delimiter	the character to search for

Returns

the index of the first occurence of the delimiter if found, or

SIZE_MAX for invalid arguments or if the delimiter is not found

rcutils_findn()

size_t rcutils_findn	(	const char *	str,
		char	delimiter,
		size_t	string_length
	)

Return the first index of a character in a string of specified length.

Identical to rcutils_find_first() but without relying on the string to be a null terminated c string.

Parameters

[in]	str	string to search
[in]	delimiter	the character to search for
[in]	string_length	length of the string to search

Returns

the index of the first occurence of the delimiter if found, or

SIZE_MAX for invalid arguments or if the delimiter is not found

rcutils_find_last()

size_t rcutils_find_last	(	const char *	str,
		char	delimiter
	)

Return the last index of a character in a string.

Search in a string for the last occurence of a delimiter.

Parameters

[in]	str	null terminated c string to search
[in]	delimiter	the character to search for

Returns

the index of the last occurence of the delimiter if found, or

SIZE_MAX for invalid arguments or if the delimiter is not found

rcutils_find_lastn()

size_t rcutils_find_lastn	(	const char *	str,
		char	delimiter,
		size_t	string_length
	)

Return the last index of a character in a string of specifed length.

Identical to rcutils_find_last() but without relying on the string to be a null terminated c string.

Parameters

[in]	str	string to search
[in]	delimiter	the character to search for
[in]	string_length	length of the string to search

Returns

the index of the last occurence of the delimiter if found, or

SIZE_MAX for invalid arguments or if the delimiter is not found