HP Fortran Programmer's Guide (B3908-90031; September 2011)

Chapter 9 205
9 Using Fortran directives
Compiler directives are commands within the source program that affect how the program is compiled.
They are similar in function to command-line options, but generally provide more local control. The
directives provided by HP Fortran use a syntax that causes them to be treated as comments (and so ignored)
when ported to another processor or when incorrectly formatted. The following sections describe the HP