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Re: preprocessor/9650: string literal contactenation doesn't work with #include
- From: frey waid <waid at cisco dot com>
- To: neil at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
- Date: Mon, 10 Feb 2003 15:01:49 -0800
- Subject: Re: preprocessor/9650: string literal contactenation doesn't work with #include
- References: <20030210225732.10027.qmail@sources.redhat.com>
that's what i was doing before. so i had this:
#include COMP_INC(comp,file)
#define COMP_INC(comp,file) #comp "/include/" #file
do you have another method in mind?
frey
neil@gcc.gnu.org wrote:
>
> Synopsis: string literal contactenation doesn't work with #include
>
> State-Changed-From-To: open->closed
> State-Changed-By: neil
> State-Changed-When: Mon Feb 10 22:57:32 2003
> State-Changed-Why:
> Not a bug.
>
> In standard C/C++ such concatenation does not happen. It appears it was an undocumented feature of some previous versions of GCC.
>
> If you really miss it, you can probably get what you want through the # operator via indirect macro expansion.
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9650