CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Fri Jul 31 19:50:44 UTC 2020

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

Log Message:
make(1): refactor DirExpandCurly

Separating the low-level parts into small functions reduces the need for
summarizing comments between the code lines.

Using a consistent naming scheme for the variables and expressive names
makes the code easier to understand.  The number of variables has
increased from 7 to 11, their clearer names compensate for that, plus
the fact that they come in triples (x, x_end, x_len). Placing the
variables into appropriate registers and eliminating memory access is
left as an exercise to the compiler.


To generate a diff of this commit:
cvs rdiff -u -r1.79 -r1.80 src/usr.bin/make/dir.c

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