[svn-r5270] Purpose: bug fix

Description:
    The default constructor of H5File was missing.  It's now added.

Platforms:
    SunOS 5.7 (arabica)
    Linux 6.2 (eirene)
    IRIX 6.5.11 (modi4)

c++/src/H5File.h

@@ -8,6 +8,9 @@ namespace H5 {
 
 class __DLLCPP__ H5File : public IdComponent, public CommonFG {
    public:
+	// Default constructor
+	H5File();
+
 	// copy constructor: makes a copy of the original H5File object.
 	H5File(const H5File& original );