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Groups > comp.lang.c > #110248
| From | Hans-Peter Diettrich <DrDiettrich1@aol.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Token concatenation |
| Date | 2017-05-18 03:25 +0200 |
| Message-ID | <eo4bg1Flha4U1@mid.individual.net> (permalink) |
In the Windows headers (driverspecs.h) I found a strange use of the ## operator, like this pattern: #define foo(x) bar(##baz(x)) A (baz concatenation is invalid, does not result in a valid preprocessor token. Can somebody explain the intended evaluation? DoDi
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Token concatenation Hans-Peter Diettrich <DrDiettrich1@aol.com> - 2017-05-18 03:25 +0200 Re: Token concatenation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-05-18 11:17 +0100
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