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mcpp (1)

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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 compiler-independent-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:

-@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).
-C: Output also comments.
-D <macro>[=<value>]: Define <macro> as <value> (default:1).
-D <macro(args)>[=<replace>]: Define <macro(args)> as <replace>.
-e <encoding>: Change the default multi-byte character encoding to one of: euc_jp, gb2312, ksc5601, big5, sjis, iso2022_jp, utf8.
-I <directory>: Add <directory> to the #include search list.
-I-: Unset system or site specific include directories.
-j: Do not output the source line in diagnostics.
-M, -MM, -MD, -MMD, -MP, -MQ target, -MT target, -MF file: Output source file dependency line for makefile.
-N: Don't predefine any non-standard macros.
-o <file>: Output to <file>.
-P: Don't output #line lines.
-Q: Output diagnostics to "mcpp.err" (default:stderr).
-U <macro>: Undefine <macro>.
-v: Show version of mcpp.
-W <level>: Set warning level to <level> (OR of {0,1,2,4,8,16}, default:1).
-z: Don't output the included file, only defining macros.

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

-+
Process C++ source.
-2
Enable digraphs.
-h <n>
Re-define the pre-defined macro __STDC_HOSTED__ as <n>.
-S <n>
Redefine __STDC__ to <n>, undefine old style macros.
-V <n>
Redefine __STDC_VERSION__ or __cplusplus to <n>.
C with -V199901L specifies C99 mode.
C++ with -V199901L specifies C99 compatible mode.

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

-@compat
Expand recursive macro more than Standard.
-3
Enable trigraphs.

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

-a
Process "assembler" source.

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 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".