[svn-r24865] Description:

- Added another overload for char* argument:
        ssize_t getComment(const char* name, const size_t buf_size, char* comment)
    - Changed default value to 0 for the other two getComment methods
    - Added HDmemset to after every char string allocation to clear the buffer
Platforms tested:
    Linux/ppc64 (ostrich)
    Linux/32 2.6 (jam)
    Linux/64 2.6 (platypus)/PGI compilers

c++/src/H5Exception.h

@@ -155,6 +155,13 @@ class H5_DLLCPP LibraryIException : public Exception {
 	virtual ~LibraryIException() throw();
 };
 
+class H5_DLLCPP LocationException : public Exception {
+   public:
+	LocationException(const H5std_string& func_name, const H5std_string& message = DEFAULT_MSG);
+	LocationException();
+	virtual ~LocationException() throw();
+};
+
 class H5_DLLCPP IdComponentException : public Exception {
    public:
 	IdComponentException(const H5std_string& func_name, const H5std_string& message = DEFAULT_MSG);