mirror of
https://github.com/Ponce/slackbuilds
synced 2024-11-08 20:28:13 +01:00
13 lines
746 B
Text
13 lines
746 B
Text
unifdef (selectively processes C conditional compilation)
|
|
|
|
The unifdef utility selectively processes conditional C preprocessor #if
|
|
and #ifdef directives. It removes from a file both the directives and the
|
|
additional text that they delimit, while otherwise leaving the file alone.
|
|
|
|
It is useful for avoiding distractions when studying code that uses
|
|
#ifdef heavily for portability: the author's original motivation was to
|
|
understand xterm's pty handling code. It can be used as a lightweight
|
|
preprocessor; for example the Linux kernel uses unifdef to strip out
|
|
#ifdef __KERNEL__ sections from the headers it exports to userland. You
|
|
can use unifdef with languages other than C; for example UIT, a publisher
|
|
in Cambridge, uses unifdef with LaTeX.
|