1 files changed, 1 insertions, 1 deletions
diff --git a/bigint.cpp b/bigint.cpp
index 8cd06ab..c25a2c1 100644
--- a/bigint.cpp
+++ b/bigint.cpp
@@ -521,7 +521,7 @@ string Bigint::serialiseMantissa() const {
 }
 
 void Bigint::deserialiseMantissa(const string &s){
-	assert(s.size()%sizeof(digit_t)==0);
+	if(s.size()%sizeof(digit_t)!=0)throw invalid_argument("Not a serialised Bigint");
 	sign=1;
 	int sz=s.size()/sizeof(digit_t);
 	digits.resize(sz);