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authorPeter Stephenson <pws@users.sourceforge.net>2005-05-17 10:49:31 +0000
committerPeter Stephenson <pws@users.sourceforge.net>2005-05-17 10:49:31 +0000
commit16869f5aa75f84ce356f7499da3ef119920a69bf (patch)
treeea3e0cdcd05761f35a250e945ea7e6f4545b4e1f
parent3e9b2871775bda6245d1e9a860f174e1271b7eab (diff)
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zsh-16869f5aa75f84ce356f7499da3ef119920a69bf.tar.xz
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21264: document return status of (( ... ))
-rw-r--r--ChangeLog4
-rw-r--r--Doc/Zsh/arith.yo5
2 files changed, 8 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index f66c3c925..c97a7566c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-17  Peter Stephenson  <pws@csr.com>
+
+	* 21264: Doc/Zsh/arith.yo: document the return status of (( ... )).
+
 2005-05-17  Geoff Wing  <gcw@zsh.org>
 
 	* unposted: Etc/FAQ.yo: update mirror sites
diff --git a/Doc/Zsh/arith.yo b/Doc/Zsh/arith.yo
index 20456b924..33ca09c20 100644
--- a/Doc/Zsh/arith.yo
+++ b/Doc/Zsh/arith.yo
@@ -21,7 +21,10 @@ command which begins with a `tt(LPAR()LPAR())', all the characters until a
 matching `tt(RPAR()RPAR())' are treated as a quoted expression and
 arithmetic expansion performed as for an argument of tt(let).  More
 precisely, `tt(LPAR()LPAR())var(...)tt(RPAR()RPAR())' is equivalent to
-`tt(let ")var(...)tt(")'.  For example, the following statement
+`tt(let ")var(...)tt(")'.  The return status is 0 if the arithmetic value
+of the expression is non-zero, and 1 otherwise.
+
+For example, the following statement
 
 example((( val = 2 + 1 )))