libzahl

commit d2998cadfbdf13a427966a44a17767c316d6d410
parent ae625b8dacba17e4a41912b5bb16da8f97089681
Author: Mattias Andrée <maandree@kth.se>
Date:   Thu,  3 Mar 2016 21:17:20 +0100

zsets: minor optimisation

Signed-off-by: Mattias Andrée <maandree@kth.se>

Diffstat:
M
src/zsets.c
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/zsets.c b/src/zsets.c
@@ -27,13 +27,16 @@ zsets(z_t a, const char *str)
 	SET_SIGNUM(a, 0);
 
 	switch ((str_end - str) % 19) {
+	case 0:
 		while (*str) {
 #define X(n)\
 			temp *= 10, temp += *str++ & 15;\
 		case n:
 		X(18) X(17) X(16) X(15) X(14) X(13) X(12) X(11) X(10)
-		X(9) X(8) X(7) X(6) X(5) X(4) X(3) X(2) X(1) X(0)
+		X(9) X(8) X(7) X(6) X(5) X(4) X(3) X(2) X(1)
 #undef X
+			temp *= 10, temp += *str++ & 15;
+
 			zmul(a, a, libzahl_const_1e19);
 			zsetu(libzahl_tmp_str_num, temp);
 			zadd(a, a, libzahl_tmp_str_num);