1 files changed, 3 insertions, 6 deletions
diff --git a/impl/IdMap.hpp b/impl/IdMap.hpp
index b265e37..8cb25f8 100644
--- a/impl/IdMap.hpp
+++ b/impl/IdMap.hpp
@@ -1,6 +1,7 @@
 #ifndef ID_MAP_HPP
 #define ID_MAP_HPP
 
+#include <cassert>
 #include <ostream>
 
 template<typename T, typename V>
@@ -32,15 +33,11 @@ struct IdMap {
     return *this;
   }
   virtual const V& operator[] (const T& x) const {
-    if (x.id() >= _length) {
-      throw "Array out of bounds";
-    }
+    assert(x.id() < _length);
     return _assignment[x.id()];
   }
   virtual V& operator[] (const T& x) {
-    if (x.id() >= _length) {
-      throw "Array out of bounds";
-    }
+    assert(x.id() < _length);
     return _assignment[x.id()];
   }