pg_bin2whex def_bin2hex()

in convert.c [6395:6433]

• 36 lines of code
• 8 McCabe index (conditional complexity)

pg_bin2whex def_bin2hex(SQLWCHAR)
#endif /* UNICODE_SUPPORT */

static SQLLEN
pg_bin2hex def_bin2hex(char)

SQLLEN
pg_hex2bin(const char *src, char *dst, SQLLEN length)
{
	UCHAR		chr;
	const char *src_wk;
	char	   *dst_wk;
	SQLLEN		i;
	int		val;
	BOOL		HByte = TRUE;

	for (i = 0, src_wk = src, dst_wk = dst; i < length; i++, src_wk++)
	{
		chr = *src_wk;
		if (!chr)
			break;
		if (chr >= 'a' && chr <= 'f')
			val = chr - 'a' + 10;
		else if (chr >= 'A' && chr <= 'F')
			val = chr - 'A' + 10;
		else
			val = chr - '0';
		if (HByte)
			*dst_wk = (val << 4);
		else
		{
			*dst_wk += val;
			dst_wk++;
		}
		HByte = !HByte;
	}
	*dst_wk = '\0';
	return length;
}