5.4 Additional Notes About Migrating to the f95 Compiler

• The floatingpoint.h header file replaces f77_floatingpoint.h, and should be used in source programs as follows:

  #include "floatingpoint.h"

• Header file references of the form f77/filename should be changed to remove the f77/ directory path.

• Some programs utilizing non-standard aliasing techniques (by overindexing arrays, or by overlapping Cray or Fortran pointers) may benefit by compiling with the appropriate -xalias flag. See 3.4.112 –xalias[=keywords]. This is discussed with examples in the chapter on porting “dusty deck” programs in the Fortran Programming Guide.