CVS commit: src/usr.bin/make

["Roland Illig" <rillig%netbsd.org@localhost>]

Module Name:    src
Committed By:   rillig
Date:           Fri Nov 13 07:52:04 UTC 2020

Modified Files:
        src/usr.bin/make: cond.c

Log Message:
make(1): use bitset for IfState

Previously, the individual IfStates contained redundant information,
which was apparent in the documentation.  This led to expressions like
(state > ELSE_ACTIVE) that are hard to read since the reader has to look
up the order of the enum.

To avoid this, the state of an '.if' block is now encoded using a bitset,
encoding the properties of each state directly.  This replaces the
previous (state > ELSE_ACTIVE) with !(state & IFS_ACTIVE), which is
easier to understand.

No change in behavior.


To generate a diff of this commit:
cvs rdiff -u -r1.212 -r1.213 src/usr.bin/make/cond.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.