MCPP(1)

NAME
mcpp - Matsui CPP, an alternative C preprocessor

SYNOPSIS
mcpp [options] [<infile> [<outfile>]]

DESCRIPTION
mcpp is a C/C++ preprocessor with the highest conformance which implements C90, C99 and C++98. mcpp has plentiful diagnostics and many #pragmas. It is useful to check portability of your program, and also useful to debug complicated macro. This is a man-page for mcpp of GCC-specific-build.

OPTIONS
mcpp expects two file names as arguments, <infile> and <outfile>. If not specified, <infile> defaults to standard input and <outfile> defaults to standard output.

It takes the following options.

Commonly used options:

-$, -fno-dollars-in-identifiers
    Forbid '$' in identifiers.

-@MODE
    Specify preprocessing mode. MODE should be one of these 4:

-@std
    Standard conforming mode. (default)

-@poststd, -@post
    special 'post-Standard' mode.

-@kr
    K&R 1st mode.

-@oldprep, -@old
    "old_preprocessor" mode (i.e. "Reiser model" cpp).

-@compat
    Standard 'compatible' mode.

-b  Output #line lines in C source style (default: GCC style).

-C  Output also comments.

-D <macro>[=<value>]
    Define <macro> as <value> (default:1).

-D <macro(args)>[=<replace>]
    Define <macro(args)> as <replace>.

-dM, -dD
    Dump all current macro definitions to output stream.

-e <encoding>
    Change the default multi-byte character encoding to one of: euc_jp, gb2312, ksc5601, big5, sjis, iso2022_jp, utf8.

-finput-charset=<encoding>
    Same as -e <encoding>. (Do not insert spaces around '=').

-f[no-]working-directory
    (Don't) emit #line marks with current working directory.

-fstack-protector[-all]
    Add defines for GCC stack protector.

-f[no-]exceptions
    (Don't) add define for exception support.

-fpic, -fPIC, -fpie, -fPIE
    Add defines for PIC/PIE code.

-I <directory>
    Add <directory> to the #include search list.

-I- Unset system or site specific include directories.

-include <file>
    Include the <file> prior to the main input file.

-isystem <dir>
    Look for include files in DIR, if not found in -I's.

-iquote <dir>
    Look for #include "file" (with quotes) in DIR.

-j  Do not output the source line in diagnostics.

-k  Keep white spaces of input lines as they are.

-M, -MM, -MD, -MMD, -MP, -MQ target, -MT target, -MF file
    Output source file dependency line for makefile.

-m32
    Change target CPU from x86_64, ppc64 to i386, ppc, respectively.

-m64
    Change target CPU from i386, ppc to x86_64, ppc64, respectively.

-[no-]mmx
    (Un-)define __MMX__.

-N  Don't predefine any non-standard macros.

-nostdinc
    Unset system or site specific include directories.

-o <file>
    Output to <file>.

-P  Don't output #line lines.

-Q  Output diagnostics to "mcpp.err" (default:stderr).

-U <macro>
    Undefine <macro>.

-undef
    Same as -N.

-v  Show version of mcpp.

-W <level>
    Set warning level to <level> (OR of {0,1,2,4,8,16}, default:1).

-w  Same as -W0.

-z  Don't output the included file, only defining macros.

Options available with -@std (default) or -@poststd options:

-+  Process C++ source.

-2  Enable digraphs.

-digraphs
    Enable digraphs.

-h <n>
    Re-define the pre-defined macro __STDC_HOSTED__ as <n>.

-lang-c89
    Same as -S1.

-lang-c99, -lang-c9x
    Same as -S199901L.

-lang-c++
    Same as -+.

-lang-asm
    Same as -a.

-pedantic, -pedantic-errors
    Same as -W7.

-S <n>
    Redefine __STDC__ to <n>, undefine old style macros.

-std=<STANDARD>
    Specify the standard to which the code should conform. <STANDARD> may be one of: c90, c99, iso9899:1990, iso14882, etc.
    iso9899:<n>, iso14882:<n> : Same as -V <n> (long in decimals).

-V <n>
    Redefine __STDC_VERSION__ or __cplusplus to <n>.
    C with -V199901L specifies C99 mode.
    C++ with -V199901L specifies C99 compatible mode.

-x c++
    Same as -+.

Options available with only -@std (default) option:

-@compat
    Expand recursive macro more than Standard.

-3  Enable trigraphs.

-trigraphs
    Enable trigraphs.

-K  Embed macro annotations into comments.

Options available with -@std (default), -@kr or -@oldprep options:

-lang-asm
    Same as -x assembler-with-cpp.

-x assembler-with-cpp
    Process "assembler" source.

Option available on Mac OS X / Apple-GCC:

-arch <arch>
    Change the target to <arch> (one of i386, x86_64, ppc and ppc64).

Option available on CygWIN:

-mno-cygwin
    Change include directory and predefined macros for msvcrt.dll rather than cygwin1.dll.

PRAGMA
mcpp has the following #pragma directives.

#pragma once
    Read the header file only once even if multiply #included.

#pragma __setlocale( "encoding")
    Specify the multibyte character encoding to "encoding". See -e option for the encodings.

#pragma MCPP put_defines
    Putout all the macro definitions currently valid.

#pragma MCPP debug <args>
    Start to putout debugging informations.
        <args> should be one or more of:
        token expand macro_call path if expression memory getc

#pragma MCPP end_debug <args>
    Stop to putout debugging informations.
        <args> are the same with 'debug'.
        No argument specifies all arguments.

#pragma MCPP push_macro( "MACRO")
    Save the macro definition to the stack.

#pragma MCPP pop_macro( "MACRO")
    Retrieve the macro definition from the stack.

#pragma MCPP preprocess
    "Pre-preprocess" the following header files for mcpp.

#pragma MCPP warning    any message
    Putout warning "any message".

VERSION
MCPP V.2.7 (2008/03) for GCC

SEE ALSO
The full documentation for mcpp are maintained as html files. Please see mcpp-manual.html.