Commit message (Collapse) | Author | Age | Files | Lines | |
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* | preproc: fix varadic macros, add conditional comma operator | H. Peter Anvin (Intel) | 2019-08-20 | 1 | -0/+6 |
Fix the (severely broken handling of) varadic macros. Add a conditional comma operator "%,". This expands to a comma unless followed by a null expansion of some sort, which allows suppressing the comma before an empty argument (usually varadic, but not necessarily.) Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> |