qsort.h File Reference

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

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Functions
rcutils_ret_t	rcutils_qsort (void *ptr, size_t count, size_t size, int(*comp)(const void *, const void *))
	Interface to qsort with rcutils-style argument validation. More...

Function Documentation

rcutils_qsort()

rcutils_ret_t rcutils_qsort	(	void *	ptr,
		size_t	count,
		size_t	size,
		int(*)(const void *, const void *)	comp
	)

Interface to qsort with rcutils-style argument validation.

This function changes the order of the elements in the array so that they are in ascending order according to the given comparison function.

This function is thread-safe.

Parameters

[in,out]	ptr	object whose elements should be sorted.
[in]	count	number of elements present in the object.
[in]	size	size of each element, in bytes.
[in]	comp	function used to compare two elements.

Returns

RCUTILS_RET_OK if successful, or

RCUTILS_RET_INVALID_ARGUMENT for invalid arguments, or

RCUTILS_RET_ERROR if an unknown error occurs.