Function pg_encoding_verifymbchar

src/common/wchar.c:2001–2007

* Verify the first multibyte character of the given string. * Return its byte length if good, -1 if bad. (See comments above for * full details of the mbverifychar API.) */

 * full details of the mbverifychar API.)
 */
int
pg_encoding_verifymbchar(int encoding, const char *mbstr, int len)
{
	return (PG_VALID_ENCODING(encoding) ?
			pg_wchar_table[encoding].mbverifychar((const unsigned char *) mbstr, len) :
			pg_wchar_table[PG_SQL_ASCII].mbverifychar((const unsigned char *) mbstr, len));
}

/*
 * Verify that a string is valid for the given encoding.