Fixed digit bug

RKX1209 · RKX1209 · commit e90ce8a5aef8 · 2017-04-22T21:30:56.000+09:00
diff --git a/core.c b/core.c
@@ -136,16 +136,16 @@ static inline bool c3_is_digit (char c) {
 }
 
 static int32_t get_digit_long (char **p) {
-  int32_t res = 0, dig = 1;
+  int32_t res = 0;
   int sign = 1;
   if (**p == '-') {
     sign = -1;
     (*p)++;
   }
   //XXX may overflow. and must treat invalid num, like 8p30
   while (c3_is_digit (**p)) {
-    res += (**p - '0') * dig;
-    dig *= 10;
+    res *= 10;
+    res += (**p - '0');
     (*p)++;
   }
   res *= sign;
diff --git a/test/simple4.cnf b/test/simple4.cnf
@@ -0,0 +1,8 @@
+c This is example of random form
+c Author rkx1209
+p cnf 20 5
+4 5 11 13 14 -11 17 -17 0
+3 -5 12 20 10 -1 7 4 0
+1 -19 18 15 -10 5 -17 4 0
+-12 5 0
+9 14 15 16 20 0

Original file line number	Diff line number	Diff line change
`@@ -136,16 +136,16 @@ static inline bool c3_is_digit (char c) {`
`136`	`136`	`}`
`137`	`137`
`138`	`138`	`static int32_t get_digit_long (char **p) {`
`139`		`- int32_t res = 0, dig = 1;`
	`139`	`+ int32_t res = 0;`
`140`	`140`	`int sign = 1;`
`141`	`141`	`if (**p == '-') {`
`142`	`142`	`sign = -1;`
`143`	`143`	`(*p)++;`
`144`	`144`	`}`
`145`	`145`	`//XXX may overflow. and must treat invalid num, like 8p30`
`146`	`146`	`while (c3_is_digit (**p)) {`
`147`		`- res += (*p - '0') dig;`
`148`		`- dig *= 10;`
	`147`	`+ res *= 10;`
	`148`	`+ res += (**p - '0');`
`149`	`149`	`(*p)++;`
`150`	`150`	`}`
`151`	`151`	`res *= sign;`