Avoid quadratic code when walking definition stack.
commit72506c2eb1d10571bcd2351aa1f3d2427be3c669
authorEric Blake <ebb9@byu.net>
Thu, 12 Feb 2009 21:59:08 +0000 (12 14:59 -0700)
committerEric Blake <ebb9@byu.net>
Thu, 12 Feb 2009 21:59:08 +0000 (12 14:59 -0700)
tree10ff355f7d27e9770d56d4d6b5f0ab5af13bcdd3
parentd499df171ddb2161d1e75055009a9b3d18131591
Avoid quadratic code when walking definition stack.

* examples/stack_sep.m4: Use linear, not quadratic
implementation.
* doc/m4.texinfo (Improved copy): Fix documentation and add test,
based on recent autoconf bug fix.

Signed-off-by: Eric Blake <ebb9@byu.net>
ChangeLog
doc/m4.texinfo
examples/stack_sep.m4