[src/trunk]: src/lib/libc/stdlib - Simplify the code

[enami <enami%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/38036c735cf9
branches:  trunk
changeset: 758316:38036c735cf9
user:      enami <enami%NetBSD.org@localhost>
date:      Tue Nov 02 03:44:05 2010 +0000

description:
- Simplify the code
- Reword the comment.

diffstat:

 lib/libc/stdlib/getenv.c |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (32 lines):

diff -r 132290af10ea -r 38036c735cf9 lib/libc/stdlib/getenv.c
--- a/lib/libc/stdlib/getenv.c  Mon Nov 01 19:00:08 2010 +0000
+++ b/lib/libc/stdlib/getenv.c  Tue Nov 02 03:44:05 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: getenv.c,v 1.27 2010/11/01 02:41:27 enami Exp $        */
+/*     $NetBSD: getenv.c,v 1.28 2010/11/02 03:44:05 enami Exp $        */
 
 /*
  * Copyright (c) 1987, 1993
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)getenv.c   8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: getenv.c,v 1.27 2010/11/01 02:41:27 enami Exp $");
+__RCSID("$NetBSD: getenv.c,v 1.28 2010/11/02 03:44:05 enami Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -119,10 +119,10 @@
        if (required_len <= environ_malloced_len && saveenv == environ)
                return 0;
 
-       /* Make sure we at least double the size of the arrays. */
-       new_len = environ_malloced_len >= 16 ? environ_malloced_len : 16;
+       /* Double the size of the arrays until we meet the requirement. */
+       new_len = environ_malloced_len ? environ_malloced_len : 16;
        while (new_len < required_len)
-               new_len = new_len << 1;
+               new_len <<= 1;
 
        if (saveenv == environ) {               /* just increase size */
                if ((p = realloc(saveenv, new_len * sizeof(*p))) == NULL)