Unless you are writing code that must be recompiled
on a system where ANSI C is not available, it is recommended that
you use the ANSI mode of compilation for your new development. It
is also recommended that you use ANSI mode to recompile existing programs
after making any necessary changes.
Because an ANSI-conforming compiler is required
to do more thorough error detection and reporting than has been traditional
among C compilers in the past, you may find that your productivity
will be enhanced because more errors will be caught at compile time.
This may be especially true if you use function prototypes.
If you do not specify the mode of compilation,
beginning with the HP-UX 10.30 operating system release, it defaults
to -Ae.
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