Fix offset computation in BigInteger::operator<<

abolz · abolz · commit 879ae853fe00 · 2018-06-16T09:41:04.000+02:00
diff --git a/include/rapidjson/internal/biginteger.h b/include/rapidjson/internal/biginteger.h
@@ -133,7 +133,7 @@ class BigInteger {
         RAPIDJSON_ASSERT(count_ + offset <= kCapacity);
 
         if (interShift == 0) {
-            std::memmove(&digits_[count_ - 1 + offset], &digits_[count_ - 1], count_ * sizeof(Type));
+            std::memmove(digits_ + offset, digits_, count_ * sizeof(Type));
             count_ += offset;
         }
         else {

Original file line number	Diff line number	Diff line change
`@@ -133,7 +133,7 @@ class BigInteger {`
`133`	`133`	`RAPIDJSON_ASSERT(count_ + offset <= kCapacity);`
`134`	`134`
`135`	`135`	`if (interShift == 0) {`
`136`		`- std::memmove(&digits_[count_ - 1 + offset], &digits_[count_ - 1], count_ * sizeof(Type));`
	`136`	`+ std::memmove(digits_ + offset, digits_, count_ * sizeof(Type));`
`137`	`137`	`count_ += offset;`
`138`	`138`	`}`
`139`	`139`	`else {`