cleanup for valgrind.

File.cpp

@@ -34,7 +34,7 @@ namespace coreutils {
 
    File::~File() {
       close(fd);
-      setBufferSize(0);
+      free(buffer);
    }
 
    void File::setBufferSize(size_t size) {

ZString.cpp

@@ -66,9 +66,11 @@ namespace coreutils {
    }
 
    ZString::~ZString() {
-      if(cdata != NULL)
+      if(cdata != NULL) {
+	 std::cout << "********" << cdata << "********" << strlen(cdata) << std::endl;	   
 	 free(cdata);
       }      
+   }
 
    bool ZString::operator<(const ZString &valuex) const {
       char *end1 = data + length;
@@ -443,8 +445,12 @@ namespace coreutils {
    }
    
    int ZString::skipWhitespace() {
-      int len = strspn(cursor, " \n\t");
-      cursor += len;
+      char *end = data + length;
+      int len = 0;
+      while((cursor < end) && ((*cursor == ' ') || (*cursor == '\n') || (*cursor == '\t'))) {
+	 ++cursor;
+	 ++len;
+      }      
       return len;
    }
 

ZString.h

@@ -84,7 +84,7 @@ namespace coreutils {
       /// Destructor for the ZString.
       ///
       
-      ~ZString();
+      virtual ~ZString();
       
       ///
       /// A friend method used to write the value of the ZString
@@ -454,9 +454,9 @@ namespace coreutils {
       void moveBackToLineStart();
             
     protected:
-      char *data;
-      char *cursor;
-      size_t length;
+      char *data = NULL;
+      char *cursor = NULL;
+      size_t length = 0;
       char *cdata = NULL;
       std::vector<ZString> list;