Correct a off by one error

Qucs · Feb 1, 2015 · 64ad184 · 64ad184
1 parent 8b4ae62
commit 64ad184
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qucs-core/src/history.cpp b/qucs-core/src/history.cpp
@@ -75,7 +75,7 @@ void history::drop (void) {
     r += this->unused ();
     if (r >= 2)
       r -= 2;
-    r = std::min(r,this->values->size());
+    r = std::min(r,this->values->size()-1);
     if (r > 127)
       /* erase the first r value */
       this->values->erase(this->values->begin(),this->values->begin()+r);