1987-02-24 15:32:48 +00:00
|
|
|
.TH CPP 6ACK
|
1987-03-11 13:56:17 +00:00
|
|
|
.ad
|
1984-07-13 15:20:58 +00:00
|
|
|
.SH NAME
|
|
|
|
|
cpp \- C Pre-Processor
|
|
|
|
|
.SH SYNOPSIS
|
1987-02-24 15:32:48 +00:00
|
|
|
cpp [\-options] [ file ]
|
1984-07-13 15:20:58 +00:00
|
|
|
.SH DESCRIPTION
|
|
|
|
|
.I Cpp
|
1987-02-24 15:32:48 +00:00
|
|
|
reads a file, expands macros and include
|
1984-07-13 15:20:58 +00:00
|
|
|
files, and writes an input file for the C compiler.
|
1987-02-24 15:32:48 +00:00
|
|
|
All output is to standard output.
|
1984-07-13 15:20:58 +00:00
|
|
|
.br
|
1987-02-24 15:32:48 +00:00
|
|
|
The following options are supported.
|
|
|
|
|
.IP -\fBI\fIdirectory\fR
|
|
|
|
|
.br
|
|
|
|
|
add this directory to the list of
|
1984-07-13 15:20:58 +00:00
|
|
|
directories searched for #include "..." and #include <...>
|
|
|
|
|
commands. Note that there is no space between the
|
|
|
|
|
"-I" and the directory string. More than one -I command
|
|
|
|
|
is permitted.
|
1987-02-24 15:32:48 +00:00
|
|
|
.IP -\fBI\fR
|
|
|
|
|
end the list of directories to be searched, and also do not look in
|
|
|
|
|
default places.
|
|
|
|
|
.IP -\fBD\fIname\fR=\fItext\fR
|
|
|
|
|
.br
|
|
|
|
|
define
|
|
|
|
|
.I name
|
|
|
|
|
as a macro with
|
|
|
|
|
.I text
|
|
|
|
|
as its replacement text.
|
|
|
|
|
.IP -\fBD\fIname\fR
|
|
|
|
|
the same as -\fBD\fIname\fR=1.
|
|
|
|
|
.IP
|
|
|
|
|
.IP -\fBU\fIname\fR
|
|
|
|
|
.br
|
|
|
|
|
undefine the macro name
|
|
|
|
|
.IR name .
|
|
|
|
|
.IP -\fBC\fR
|
|
|
|
|
leave comments in. By default, C-comments are deleted.
|
|
|
|
|
.IP -\fBP\fR
|
|
|
|
|
do not generate line directives
|
|
|
|
|
.IP -\fBM\fIn\fR
|
|
|
|
|
set maximum identifier length to
|
|
|
|
|
.IR n .
|
|
|
|
|
.PP
|
1984-07-13 15:20:58 +00:00
|
|
|
The following names are always available unless undefined:
|
|
|
|
|
.RS
|
|
|
|
|
.IP __FILE__
|
|
|
|
|
The input (or #include) file being compiled
|
|
|
|
|
(as a quoted string).
|
|
|
|
|
.IP __LINE__
|
|
|
|
|
The line number being compiled.
|
|
|
|
|
.IP __DATE__
|
|
|
|
|
The date and time of compilation as
|
|
|
|
|
a Unix ctime quoted string (the trailing newline is removed).
|
|
|
|
|
.RE
|
