To facilitate compatibility with older versions of Fortran, Intel® Fortran provides additional language features. Some are discussed in this section.
Others language features that facilitate compatibility with older versions of Fortran are the following:
The DEFINE FILE statement
The FIND statement
The INTERFACE TO statement
The integer POINTER statement
The VIRTUAL statement
These language features are particularly useful in porting older Fortran programs to Standard Fortran. However, you should avoid using them in new programs on these systems, and in new programs for which portability to other Standard Fortran implementations is important.