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authorHerbert Xu <herbert@gondor.apana.org.au>2014-10-07 22:24:42 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2014-10-07 22:24:42 +0800
commitf20dcdd0948d7ebb7d462a0288ea218468ad4f6c (patch)
treefc567086d638a8e16bff87dd8330d288bf06a530
parent[BUILTIN] Return without arguments in a trap should use status outside traps (diff)
downloaddash-f20dcdd0948d7ebb7d462a0288ea218468ad4f6c.tar.gz
dash-f20dcdd0948d7ebb7d462a0288ea218468ad4f6c.zip
[VAR] Use setvareq to set OPTIND initially
There is no need to setvarint to set the initial value of OPTIND
of one.  This patch switchs to setvareq which also lets us avoid
an unnecessary memory allocation.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--ChangeLog4
-rw-r--r--src/var.c5
2 files changed, 7 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index aa230ab..b990628 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-10-07  Herbert Xu <herbert@gondor.apana.org.au>
+
+	* Use setvareq to set OPTIND initially.
+
 2014-10-06  Herbert Xu <herbert@gondor.apana.org.au>
 
 	* Exit without arguments in a trap should use status outside traps.
diff --git a/src/var.c b/src/var.c
index fa24854..cc6f7f2 100644
--- a/src/var.c
+++ b/src/var.c
@@ -80,6 +80,7 @@ const char defifsvar[] = "IFS= \t\n";
 #else
 const char defifs[] = " \t\n";
 #endif
+MKINIT char defoptindvar[] = "OPTIND=1";
 
 int lineno;
 char linenovar[sizeof("LINENO=")+sizeof(int)*CHAR_BIT/3+1] = "LINENO=";
@@ -100,7 +101,7 @@ struct var varinit[] = {
 	{ 0,	VSTRFIXED|VTEXTFIXED,		"PS1=$ ",	0 },
 	{ 0,	VSTRFIXED|VTEXTFIXED,		"PS2=> ",	0 },
 	{ 0,	VSTRFIXED|VTEXTFIXED,		"PS4=+ ",	0 },
-	{ 0,	VSTRFIXED|VTEXTFIXED,		"OPTIND=1",	getoptsreset },
+	{ 0,	VSTRFIXED|VTEXTFIXED,		defoptindvar,	getoptsreset },
 #ifdef WITH_LINENO
 	{ 0,	VSTRFIXED|VTEXTFIXED,		linenovar,	0 },
 #endif
@@ -142,7 +143,7 @@ INIT {
 		}
 	}
 
-	setvarint("OPTIND", 1, 0);
+	setvareq(defoptindvar, VTEXTFIXED);
 
 	fmtstr(ppid + 5, sizeof(ppid) - 5, "%ld", (long) getppid());
 	setvareq(ppid, VTEXTFIXED);