hash test

[Eric Blake]

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I found a performance bug in gnulib's hash module:
http://article.gmane.org/gmane.comp.lib.gnulib.bugs/17875

So I'm committing this, to make it easier to repeat the test.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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>From ab371610080e917974422a15862bac38b4af0e86 Mon Sep 17 00:00:00 2001
From: Eric Blake <address@hidden>
Date: Wed, 17 Jun 2009 13:08:22 -0600
Subject: [PATCH] Stress test hash resizing.

* doc/m4.texinfo (Define): Add new test.

Signed-off-by: Eric Blake <address@hidden>
---
 ChangeLog      |    5 +++++
 doc/m4.texinfo |   19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c9169f4..1dfe21a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-17  Eric Blake  <address@hidden>
+
+       Stress test hash resizing.
+       * doc/m4.texinfo (Define): Add new test.
+
 2009-06-15  Eric Blake  <address@hidden>

        Properly manage hash return values.
diff --git a/doc/m4.texinfo b/doc/m4.texinfo
index d18d4b0..60d9c59 100644
--- a/doc/m4.texinfo
+++ b/doc/m4.texinfo
@@ -1921,6 +1921,25 @@ Define

 Change the @samp{%d} to @samp{%s} and it is an associative array.

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address@hidden Stress test for hash resizing.
+
address@hidden examples
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+$ @kbd{m4 -I examples}
+include(`forloop3.m4')
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+forloop(`i', `1', `10000', `define(`m'i, i)')
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+m10000
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+forloop(`i', `1', `10000', `undefine(`m'i, i)')
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+m10000
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address@hidden example
address@hidden ignore
+
 @node Arguments
 @section Arguments to macros

-- 
1.6.3.rc3.2.g4b51