SQLLEN mbstoc16_lf()

in win_unicode.c [899:929]

• 29 lines of code
• 15 McCabe index (conditional complexity)

SQLLEN	mbstoc16_lf(char16_t *c16dt, const char *c8dt, size_t n, BOOL lf_conv)
{
	int			i;
	size_t		brtn;
	const char	*cdt;
	mbstate_t	mbst = initial_state;

MYLOG(MIN_LOG_LEVEL, " c16dt=%p size=" FORMAT_SIZE_T "\n", c16dt, n);
	for (i = 0, cdt = c8dt; i < n || (!c16dt); i++)
	{
		if (lf_conv && PG_LINEFEED == *cdt && i > 0 && PG_CARRIAGE_RETURN != cdt[-1])
		{
			if (c16dt)
				c16dt[i] = PG_CARRIAGE_RETURN;
			i++;
		}
		brtn = mbrtoc16(c16dt ? c16dt + i : NULL, cdt, 4, &mbst);
		if (0 == brtn)
			break;
		if (brtn == (size_t) -1 ||
		    brtn == (size_t) -2)
			return -1;
		if (brtn == (size_t) -3)
			continue;
		cdt += brtn;
	}
	if (c16dt && i >= n)
		c16dt[n - 1] = 0;

	return i;
}