diff options
| -rw-r--r-- | src/qregisters.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/qregisters.cpp b/src/qregisters.cpp index 615fc77..20f6e99 100644 --- a/src/qregisters.cpp +++ b/src/qregisters.cpp @@ -1058,10 +1058,10 @@ StateCopyToQReg::got_register(QRegister ®) tecoInt to = expressions.pop_num(); from = expressions.pop_num(); - if (!Validate::pos(from) || !Validate::pos(to)) - throw RangeError("X"); - len = to - from; + + if (len < 0 || !Validate::pos(from) || !Validate::pos(to)) + throw RangeError("X"); } tr.chrg.cpMin = from; |