Added ZString constructor for assignment on definition.

MString.cpp

@@ -37,6 +37,12 @@ namespace coreutils {
       memcpy(this->data, data, length);
       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);

MString.h

@@ -40,6 +40,8 @@ namespace coreutils
       MString(const char *data, size_t length);
       
       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;