NAGWare Fortran Tools - f95 Tools - nag_depend95

Index

NAME
DESCRIPTION
OPTIONS
THE DEPENDENCY FILE
SEE ALSO

NAME

nag_depend95 - File dependency tool

DESCRIPTION

nag_depend95 analyses the source files to produce a list of the compilation dependencies on modules and include files. This list is in the format required by make.

If a filename with no extension is provided the tool will look for a file with the extension `.f95', and if that does not exist, for a file with the extension `.f90'.

If a file has the extension `.f90' or `.f95', it will be assumed to contain free format Fortran code. If a file has the extension `.f', `.for', `.f77', or `.ftn', the file is assumed to contain fixed format Fortran code. The options -fixed and -free may be used to override this behaviour.

Include files are expected to exist in the current working directory or in a directory named by the -I option.

OPTIONS

General Options

"Source format" (-fixed, -free)

Forces the tool to assume fixed or free format for the input file. If "Automatic" is set, .f90 files will be assumed to contain free format code , .f, .for, .f77, or .ftn are assumed to contain fixed format code.

"Include and module directories" (-I)

Add pathname to the list of directories which are to be searched for include files. The current working directory is always searched first, then any directories named in -I options.

"Fixed format source line length" (-132)

Increase the length of each fixed source form input line from 72 characters to 132 characters. This has no effect on free source form input.

"Allow double complex specific intrinsics" (-dcfuns)

Enable recognition of non-standard double precision complex intrinsic functions. These act as specific versions of the standard generic intrinsics as follows:

    Non-standard      Equivalent Fortran 95 Intrinsic
     CDABS(A)            ABS(A)
     DCMPLX(X,Y)         CMPLX(X,Y,KIND=KIND(0d0))
     DCONJG(Z)           CONJG(Z)
     DIMAG(Z)            AIMAG(Z)
     DREAL(Z)            REAL(Z) or DBLE(Z)

"Downgrade legacy code errors to warning" (-dusty)

Allows the analysis of ``legacy'' software by downgrading the category of common errors found in such software from ``Error'' to ``Warning'' (which may then be suppressed entirely with the -w option).

"Suppress information messages" (-info)

Suppress output of tool analysis stages information messages.

"Continuation line limit" (-maxcontin)

Increase the limit on the number of continuation lines to N. The default, as specified by the Fortran standard, is 19 for fixed source form and 39 for free source form. This will not decrease the limit below the standard number.

"Output strict Fortran 95 obsolescent messages" (-strict95)

Produce obsolescence warning messages for use of ``CHARACTER*'' syntax. This message is not produced by default since most programs contain this syntax.

"Suppress warning messages" (-w=all)

Switch on or off tool analysis stages warning messages.

"Suppress obsolescent feature warning messages" (-w=obs)

Switch on or off warning messages about the use of obsolescent features.

"Suppress unused entity warning messages" (-w=unused)

Suppresses warning messages about unused entities. It is equivalent to -w=uda -w=uei -w=ulv -w=usy.

"Suppress unused dummy argument warning messages" (-w=uda)

Switch on or off warning messages about unused dummy arguments.

"Suppress unused explicit import warning messages" (-w=uei)

Switch on or off warning messages about unused explicit imports.

"Suppress unused local variable warning messages" (-w=ulv)

Switch on or off warning messages about unused local variables.

"Suppress unused symbol warning messages" (-w=usy)

Switch on or off warning messages about unused symbols.

"Suppress Fortran 77 extension warning messages" (-w=x77)

Switch on or off extension warnings for common extensions to FORTRAN 77. These are TAB format, byte-length specifiers and Hollerith constants.

"Suppress Fortran 95 extension warning messages" (-w=x95)

Switch on or off extension warnings for extensions to Fortran 95.

THE DEPENDENCY FILE

The tool builds a compilation dependency file in the format required by make.

Any module files that would be produced from compilation of the input file, e.g. module_name.mod, are defined as targets which are dependent on infile.o.

infile.o is defined as being dependent on any modules referenced by USE statements that are not defined in the current file. For this purpose, all module files are assumed to be in the current directory.

infile.o is also defined as being dependent on all include files referenced directly or indirectly. If an include file name is specified in different ways this may result in more than one dependency being produced.