Added ZString constructor for assignment on definition.

MString.cpp

@@ -38,6 +38,12 @@ namespace coreutils {
       cursor = this->data;
    }
 
+   MString::MString(ZString zstring) {
+      setSize(zstring.getLength());
+      memcpy(data, zstring.getData(), zstring.getLength());
+      cursor = data;      
+   }   
+   
    MString::MString(const MString &mstring) {
       setSize(mstring.length);
       memcpy(data, mstring.data, mstring.length);

MString.h

@@ -41,6 +41,8 @@ namespace coreutils
       
       MString(const unsigned char *data, size_t length);
 
+      MString (ZString zstring);
+      
       ///
       /// Consructor providing a copy of a ZString.
       ///

testing/mstring_test.cpp

@@ -27,6 +27,8 @@ int main(int argc, char **argv) {
 
    coreutils::ZString test7("zstring data");
    coreutils::MString test4;
+   coreutils::MString test5 = test7;
+   std::cout << "coreutils::MString test5 = test7: [" << test5 << "]" << std::endl;
    test4 << "this is a test." << test7;
    std::cout << "char* operator<<: [" << test4 << "]." << std::endl;