H. Peter Anvin 36cd305ade preproc: add %abs(), modify %num(), refactor ...

Add the %abs() function, to produce the absolute value as an
always-positive decimal constant.

Change the order of the arguments for %num().

Refactor the handling of optional arguments, to reduce the amount of
redundant code. This is currently only used for builtin functions, but
might be extended in the future.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

2022-11-17 15:29:10 -08:00

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