NAME

       unitdiff - Describe differences in the interface of a FPC unit.

SYNOPSIS

       unitdiff  [ --disable-arguments] [ --disable-private] [ --disable-protected] [ --help] [ --lang=language]
       [ --list] [ --output=filename] [ --sparse] file1 file2

Description

       unitdiff scans one or two Free Pascal unit source files and either lists all  available  identifiers,  or
       describes the differences in identifiers between the two units.

Usage

       You can invoke unitdiff with as the only required argument a input filename. It will then simply list all
       available identifiers.

       The regular use is to invoke unitdiff with input1 input2 arguments. It will then show the  difference  in
       interface  between the two units, or list the available identifiers in both units. The output of unitdiff
       will go to standard output by default.

Options

       unitdiff has some options, most of them optional, defaults will be used in most cases.

       --disable-arguments
              If this option is specified, unitdiff will not check the arguments of functions and procedures. By
              default, these are checked as well.

       --disable-private
              By default, private methods of classes are checked. if this option is specified, private fields or
              methods are not checked.

       --disable-protected
              By default, protected  methods of classes are checked. if this option is specified, protected  and
              private fields or methods are not checked.

       --help Emit a short help text and exit.

       --lang=language
              Sets  the  language  for the output file. This will mainly set the strings used for the headers in
              various parts of the documentation files (by default they're in english). Currently, valid options
              are

              de     German.

              fr     French.

              nl     Dutch.

       --list If this option is specified, only the list of available identifiers will be specified for the unit
              or units. If only 1 unit is specified, this option is automatically assumed.

       --output=filename
              This option tells unitdiff where the output should go. If this option is not specified, the output
              is sent to standard output (the screen).

       --sparse
              Turns on sparse mode. In this mode, the output will not contain the types of the identifiers. Only
              the names of the identifiers are written to the output. By default,  also  type  descriptions  are
              written.

SEE ALSO

              ppc386(1) fpdoc(1)