diff --git a/ZString.cpp b/ZString.cpp
index 3b4c77b..5002c64 100644
--- a/ZString.cpp
+++ b/ZString.cpp
@@ -80,6 +80,16 @@ namespace coreutils {
       return 0;          
    }
 
+   // TODO: Fix the following comparison operators to handle the length problem appropriately.
+   
+   bool ZString::operator<=(const ZString &valuex) const {
+      return (strncmp(data, valuex.data, valuex.length <= length ? valuex.length : length) <= 0);
+   }
+   
+   bool ZString::operator>=(const ZString &valuex) const {
+      return (strncmp(data, valuex.data, valuex.length <= length ? valuex.length : length) >= 0);
+   }
+   
    bool ZString::operator>(const ZString &valuex) const {
       return (strncmp(data, valuex.data, valuex.length <= length ? valuex.length : length) > 0);
    }
diff --git a/ZString.h b/ZString.h
index e08e0a7..258f574 100644
--- a/ZString.h
+++ b/ZString.h
@@ -112,9 +112,9 @@ namespace coreutils {
       ///
       
       bool operator>(const ZString &valuex) const;
+      bool operator<=(const ZString &valuex) const;
+      bool operator>=(const ZString &valuex) const;
       bool operator==(const ZString &valuex);
-      //      bool operator==(std::string value);
-      //      bool operator==(const char *valuex) const;
       bool operator!=(const ZString &valuex) const;
       bool operator!=(const char *valuex) const;