◆ tcsnLen_s()

std::size_t Chusov::String::tcsnLen_s	(	const CHAR_TYPE *	pszStr,
		std::size_t	cchStr
	)

noexcept

Resolves to strnLen_s, to wcsnLen_s or to ucpsnLen_s depending on the template parameter.

Template Parameters

CHAR_TYPE is a type of a string character.

Parameters

[in]	pszStr	is a pointer to a string of the returned length. The parameter may be NULL, the function returns 0 in this case.
[in]	cchStr	is a size, in characters, of the buffer where the string is located. It is treated as a maximum length of the string. Thus, the returned value is less or equal to cchStr. The parameter is ignored if pszStr is NULL.

Returns: If the pszStr pointer is NULL, the function returns 0. Otherwise the function returns a length, in characters, of the string pointed to by pszStr. If the cchStr characters constitute a zero-terminated string the function behaves identically to tcsLen, returning a number of characters before the null terminator. Otherwise the function returns cchStr.