HP UX Fortran Software manual +charlit77, +check=bounds, +nocfc, +cpp=default, +cpp=no

-C	Performs run-time error checking of array subscripts. This option is deprecated and replaced by
	the +check=alloption.
+charlit77	+charlit77 causes character literals to be placed in writable static storage. This allows character
	strings passed as actual arguments to be modified by the called routine.
+check={
	all
	none
	uninit
	bounds
	bounds:array
	bounds:all
	bounds:none
	-check_bounds
}
	+check=all
	enables compile-time range checking for array subscripts. The +check=all option will also
	cause an executing program to halt with a runtime error if any of the following is detected:
	• Integer overflow
	• Use of uninitialized stack variable
	• Out-of-bounds subscripts
	• Out-of-bounds substrings
	+check=uninit	enables run-time checks for use of uninitialized stack variables.
	+check=bounds	enables run-time checks for out-of-bounds references to array variables.
	+check=bounds:arrary enables run-time checks for out-of-bounds references to array variables.
	+check=bounds:all enables run-time checks for both +check=bounds:array and
		+check=uninit.
	+check=bounds:none disables out-of-bounds run-time check.
	-check_bounds	performs run-time error checking; promote compile-time bound violations
		to errors.
+[no]cfc	Enable or Disable
	Compaq/DEC F90
	language mode.
+cpp={yesnodefault}
+cpp=yes	tells the compiler to pass the source files specified on the command line to the C preprocessor
	before passing them on to the compiler. This option does not apply to .i and .i90 files.
+cpp=default	The default, , is to apply the C preprocessor to files that end in the .F extension but not to files
	that end in .f or .f90.
+cpp=no	Specifying tells the compiler not to invoke the C preprocessor for all files on the command line,
	including those ending in .F.

If you want to keep the output from the C preprocessor, use the +cpp_keepoption.

+[no]cpp_keep	+cpp_ keep causes the compiler to retain the output from the C preprocessor. If the
	source filename is file.for file.F, the output filename is file.i; if the source
	filename is file.f90, the output filename is file.i90. The compiler will accept source
	files with the.i and .i90 extensions.
	The default,+nocpp_keep , is to discard the output file.

24 Compiling and linking