diff --git a/MString.cpp b/MString.cpp
index 52a800c..1d9ec32 100644
--- a/MString.cpp
+++ b/MString.cpp
@@ -84,11 +84,9 @@ namespace coreutils {
    }
 
    MString::MString(double value) {
-      std::stringstream temp;
-      temp << std::format("{}", value);
-      std::string temp2 = temp.str();
-      setSize(temp2.length());
-      memcpy(this->data, (char *)temp2.data(), temp2.length());
+      std::string temp = std::format("{}", value);
+      setSize(temp.length());
+      memcpy(this->data, (char *)temp.data(), temp.length());
       cursor = this->data;
    }
    
@@ -133,11 +131,9 @@ namespace coreutils {
    }
 
    MString &MString::operator=(double value) {
-      std::stringstream temp;
-      temp << std::format("{}", value);
-      std::string temp2 = temp.str();
-      setSize(temp2.length());
-      memcpy(this->data, (char *)temp2.data(), temp2.length());
+      std::string temp = std::format("{}", value);
+      setSize(temp.length());
+      memcpy(this->data, (char *)temp.data(), temp.length());
       cursor = this->data;
       return *this;
    }
diff --git a/testing/compile b/testing/compile
index 12cdd09..26ae112 100755
--- a/testing/compile
+++ b/testing/compile
@@ -1,4 +1,4 @@
 #!/bin/bash
-g++ -g -o zstring_test zstring_test.cpp -I.. -L.. -lCoreUtils
-g++ -g -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils
+g++ -g -std=c++20 -o zstring_test zstring_test.cpp -I.. -L.. -lCoreUtils
+g++ -g -std=c++20 -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils
 #g++ -o jstring_test jstring_test.cpp -I.. -L.. -lCoreUtils
diff --git a/testing/mstring_test b/testing/mstring_test
index 2a8f6aa..24bf1ac 100755
Binary files a/testing/mstring_test and b/testing/mstring_test differ
diff --git a/testing/zstring_test b/testing/zstring_test
index f39d332..5bfcf16 100755
Binary files a/testing/zstring_test and b/testing/zstring_test differ