1 .. -*- coding: utf-8; -*-

     2 

     3 =======================

     4  cpp (C preprocessor).

     5 =======================

     6 

     7 How to see macros expansion?

     8 ============================

     9 

    10 GCC::

    11 

    12   $ cpp <file>.c

    13 

    14 MSVC::

    15 

    16   $ cl /E <file>.c

    17 

    18 Who to see predefined macros?

    19 =============================

    20 

    21 See:

    22 

    23   http://predef.sourceforge.net/

    24   http://en.wikipedia.org/wiki/C_preprocessor#Compiler-specific_predefined_macros

    25 

    26 GNU C Compiler::

    27 

    28   $ gcc -dM -E - < /dev/null

    29 

    30 HP-UX ansi C compiler::

    31 

    32   $ cc -v EMPTY.c

    33 

    34 SCO OpenServer C compiler::

    35 

    36   $ cc -## EMPTY.c

    37 

    38 Sun Studio C/C++ compiler::

    39 

    40   $ cc -## EMPTY.c

    41 

    42 IBM AIX XL C/C++ compiler::

    43 

    44   $ cc -qshowmacros -E EMPTY.c

    45 

    46 For Visual Studio compiler there no any possibility get predefined macros from

    47 command line...

    48 

    49   http://msdn.microsoft.com/en-us/library/b0084kay.aspx

    50                 Predefined Macros

    51