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| Related articles |
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| [3 earlier articles] |
| Re: Strange C constructs jeremy@jdyallop.freeserve.co.uk (Jeremy Yallop) (2004-02-27) |
| Re: Strange C constructs alexc@std.com (Alex Colvin) (2004-02-27) |
| Re: Strange C constructs derek@NOSPAMknosof.co.uk (Derek M Jones) (2004-03-02) |
| Re: Strange C constructs david.thompson1@worldnet.att.net (Dave Thompson) (2004-03-02) |
| Re: Strange C constructs vbdis@aol.com (2004-03-02) |
| Re: Strange C constructs viz@pisem.net (Victor Zverovich) (2004-03-02) |
| Re: Strange C constructs RLake@oxfam.org.pe (2004-03-06) |
| Re: Strange C constructs nmm1@cus.cam.ac.uk (2004-03-11) |
| From: | RLake@oxfam.org.pe |
| Newsgroups: | comp.compilers |
| Date: | 6 Mar 2004 13:44:11 -0500 |
| Organization: | Compilers Central |
| References: | 04-02-147 04-03-019 |
| Keywords: | C, standards |
| Posted-Date: | 06 Mar 2004 13:44:11 EST |
> The newest C99 standard introduces single line comments (//...), but
> it can be formed in such a way using macro substitution and glueing.
^not I think you meant to say
> It is shown in the following example stolen from the standard:
> #define glue(x,y) x##y
> glue(/,/) k(); // syntax error, not comment
> K&R and previous C standard doesn't have such type of comment.
> So this code (AFAIK it is located in WTypes.h) is completely illegal
> in C and intended for use with brain-damadged Microsoft compilers.
It is, however, possible to run a C preprocessor as an independent
program, and thereby use it for other languages. I don't believe the
standard either explicitly permits or prohibits this. :) In that case,
bizarre constructs like the above might conceivably be useful.
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