memrchr_s.c File Reference

#include "safe_mem_lib.h"

Include dependency graph for memrchr_s.c:

Functions
EXPORT errno_t	memrchr_s (const void *restrict dest, rsize_t dlen, const int ch, void **result)
	Finds the last occurrence of ch (after conversion to char as if by (char)ch) in the null-terminated byte string pointed to by dest (each character interpreted as unsigned char). More...

Function Documentation

memrchr_s()

EXPORT errno_t memrchr_s	(	const void *restrict	dest,
		rsize_t	dlen,
		const int	ch,
		void **	result
	)

Finds the last occurrence of ch (after conversion to char as if by (char)ch) in the null-terminated byte string pointed to by dest (each character interpreted as unsigned char).

The terminating null character is considered to be a part of the string and can be found when searching for '\0'.

Remarks

IMPLEMENTED IN

Parameters

[in]	dest	pointer to string to compare against
[in]	dlen	restricted maximum length of dest
[in]	ch	character to search for
[out]	result	pointer to char* in dest

Precondition

Neither dest nor result shall be a null pointer.

dlen shall not be 0.

dlen shall not be greater than RSIZE_MAX_STR.

ch shall not be greater than 255

Return values

EOK	when successfully character found.
ESNULLP	when dest/result is a NULL pointer
ESZEROL	when dlen = 0
ESLEMAX	when dlen > RSIZE_MAX_STR
ESLEMAX	when ch > 255
ESNOTFND	when ch not found in dest

See also

memrchr_s(), strchr_s(), memchr_s(), strspn_s(), strstr_s()