/* @string: pointer to u16 string, on return advanced by one codepoint Return: first codepoint of string converted to lower case  */
static s32 next_lower(const u16 **string)
/* @string: pointer to u16 string, on return advanced by one codepoint Return: first codepoint of string converted to lower case  */
static s32 next_lower(const u16 **string)
{
	return utf_to_lower(utf16_get(string));
}