diff --git a/ZString.cpp b/ZString.cpp
index 9b7f7d3..dc21d06 100644
--- a/ZString.cpp
+++ b/ZString.cpp
@@ -69,12 +69,16 @@ namespace coreutils {
    }
 
    bool ZString::operator!=(const ZString &valuex) const {
-      return (strncmp(data, valuex.data, valuex.length <= length ? valuex.length : length) != 0);
+//      if(length != valuex.getLength())
+//	return false;
+      return (strncmp(data, valuex.data, length) != 0);
    }
 
    bool ZString::operator!=(const char *valuex) const {
       size_t len = strlen(valuex);
-      return (strncmp(data, valuex, len <= length ? len : length) != 0);
+      if(length != len)
+	return true;
+      return (strncmp(data, valuex, length) != 0);
    }
 
    std::vector<ZString> &ZString::getList() {
diff --git a/testing/compile b/testing/compile
index d4d2dd7..a17f5cf 100755
--- a/testing/compile
+++ b/testing/compile
@@ -1,2 +1,3 @@
 #!/bin/bash
-g++ -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils
\ No newline at end of file
+g++ -o zstring_test zstring_test.cpp -I.. -L.. -lCoreUtils
+g++ -o mstring_test mstring_test.cpp -I.. -L.. -lCoreUtils
diff --git a/testing/mstring_test b/testing/mstring_test
index 393b408..c42765e 100755
Binary files a/testing/mstring_test and b/testing/mstring_test differ
diff --git a/testing/zstring_test b/testing/zstring_test
index 67b85d5..d84faa0 100755
Binary files a/testing/zstring_test and b/testing/zstring_test differ
diff --git a/testing/zstring_test.cpp b/testing/zstring_test.cpp
index 7edfe43..5cacf58 100644
--- a/testing/zstring_test.cpp
+++ b/testing/zstring_test.cpp
@@ -3,6 +3,13 @@
 
 int main(int argc, char **argv) {
 
+   // Test comparison operations.
+
+   coreutils::ZString test1("");
+   std::cout << (test1 != ".");
+   
+   // Test split operations.
+   
    coreutils::ZString test("11111:22222:33333:44444");
    std::cout << "test pre-split: [" << test << "]." << std::endl;