From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Wed, 30 Jan 2008 10:16:44 +0000 (+0000)
Subject: Further refinements of discussion of when to use/not use alloca().
X-Git-Tag: man-pages-2.77~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0bb9038bea1bf2abbd80ec37b7cf4d0276eedfba;p=thirdparty%2Fman-pages.git

Further refinements of discussion of when to use/not use alloca().
---

diff --git a/man3/alloca.3 b/man3/alloca.3
index 1093efd1d9..4a88392cba 100644
--- a/man3/alloca.3
+++ b/man3/alloca.3
@@ -72,7 +72,17 @@ Linux uses the GNU version.
 The
 .BR alloca ()
 function is machine- and compiler-dependent.
-Its use is discouraged.
+For certain applications,
+its use can improve efficiency compared to the use of
+.BR malloc(3)
+plus
+.BR free (3).
+In certain cases,
+it can also simplify memory deallocation in applications that use
+.BR longjmp (3)
+or
+.BR siglongjmp (3).
+Otherwise, its use is discouraged.
 
 Because the space allocated by
 .BR alloca ()