Array helper.
[Data Structure.]

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Detailed Description

This module provides helper to manipulate array of elements of any size. It provides most used array operations such as insert, erase, and search.

Functions
void	pj_array_insert (void *array, unsigned elem_size, unsigned count, unsigned pos, const void *value)
void	pj_array_erase (void *array, unsigned elem_size, unsigned count, unsigned pos)
pj_status_t	pj_array_find (const void *array, unsigned elem_size, unsigned count, pj_status_t(*matching)(const void *value), void **result)

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Function Documentation

void pj_array_erase	(	void *	array,
		unsigned	elem_size,
		unsigned	count,
		unsigned	pos
	)

Erase a value from the array at given position, and rearrange the remaining elements post the erased element.

Parameters:

	array	the array.
	elem_size	the size of the individual element.
	count	the current number of elements in the array.
	pos	the index/position to delete.

pj_status_t pj_array_find	(	const void *	array,
		unsigned	elem_size,
		unsigned	count,
		pj_status_t(*)(const void *value)	matching,
		void **	result
	)

Search the first value in the array according to matching function.

Parameters:

	array	the array.
	elem_size	the individual size of the element.
	count	the number of elements.
	matching	the matching function, which MUST return PJ_SUCCESS if the specified element match.
	result	the pointer to the value found.

Returns:

PJ_SUCCESS if value is found, otherwise the error code.

void pj_array_insert	(	void *	array,
		unsigned	elem_size,
		unsigned	count,
		unsigned	pos,
		const void *	value
	)

Insert value to the array at the given position, and rearrange the remaining nodes after the position.

Parameters:

	array	the array.
	elem_size	the size of the individual element.
	count	the CURRENT number of elements in the array.
	pos	the position where the new element is put.
	value	the value to copy to the new element.