Typedef does not work to name a type Post: 302930923

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Top Forums Programming Typedef does not work to name a type Post 302930923 by achenle on Thursday 8th of January 2015 02:45:35 PM

01-08-2015

Registered User

Quote:

Originally Posted by shamrock

@achenle:
Embedded spaces in preprocessor #defines are always a cause of confusion and error...however the issue with the OP is one of supplying a compiler statement to a preprocessor...

That was a simple off-the-cuff example to demonstrate the semantic and syntax differences between "typedef" and "#define".

The fact that whitespace is treated completely differently in typedef and #define code is another reason to never replace typedef's with #define's.

If you read the link the OP provided, you'd see his problem is compiling. He's not feeding code to a preprocessor except as part of compiling. And I'd love to see a preprocessor so lame it couldn't handle typedef's, which are part of the language spec.

"Find out what's broken and fix it" is much better than "change this and hope it works".

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LEARN ABOUT DEBIAN

omnicpp

OMNICPP(1)						      General Commands Manual							OMNICPP(1)

NAME

       omnicpp - OmniORB cpp preprocessor for IDL compiler

SYNOPSIS

       omnicpp [options]

DESCRIPTION

       This manual page documents briefly the omnicpp command.

       omniidl	is omniORBs IDL compiler and uses omnicpp as it's C preprocessor.  omnicpp is really just the GNU C preprocessor under a different
       name.  Normally you should not need to invoke this directly but should use omniidl instead.

OPTIONS

       As this is just the GNU C preprocessor cpp you can see that program for the full  options.   Normally  you  should  not	be  invoking  this
       directly  but  should  use  omniidl  instead.   The  options listed here should really be given to omniidl, but they are passed straight to
       omnicpp.

       -D name
	      Define name for the preprocessor.

       -U name
	      Undefine name for the preprocessor.

       -I dir Include dir in the preprocessor search path.  Note that the current directory is not on the include search path by default.  Use -I.
	      for that.

SEE ALSO

       omniidl(1).
       The programs are documented fully by the HTML documentation in the omniorb4-doc package.

AUTHOR

       omnicpp was written by Duncan Grisby <duncan@grisby.org>

       This manual page was written by Floris Bruynooghe <floris.bruynooghe@gmail.com>, for the Debian project (but may be used by others).

								    30 Apr 2007 							OMNICPP(1)