From b58afb270248c432dc95db1596717fbab34c7f31 Mon Sep 17 00:00:00 2001
From: Bill Joy <wnj@ucbvax.Berkeley.EDU>
Date: Sun, 1 Mar 1981 06:24:42 -0800
Subject: [PATCH] now same as atoi

SCCS-vsn: lib/libc/stdlib/atoi.c 4.2
---
 usr/src/lib/libc/stdlib/atoi.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/usr/src/lib/libc/stdlib/atoi.c b/usr/src/lib/libc/stdlib/atoi.c
index 7382fc2c13..6553fabb07 100644
--- a/usr/src/lib/libc/stdlib/atoi.c
+++ b/usr/src/lib/libc/stdlib/atoi.c
@@ -1,25 +1,25 @@
-/* @(#)atoi.c	4.1 (Berkeley) %G% */
-atoi(ap)
-char *ap;
+/* @(#)atoi.c	4.2 (Berkeley) 1/11/81 */
+atoi(p)
+register char *p;
 {
-	register int  n, c;
-	register char *p;
-	int f;
+	register int n;
+	register int f;
 
-	p = ap;
 	n = 0;
 	f = 0;
-loop:
-	while(*p == ' ' || *p == '	')
-		p++;
-	if(*p == '-') {
-		f++;
-		p++;
-		goto loop;
+	for(;;p++) {
+		switch(*p) {
+		case ' ':
+		case '\t':
+			continue;
+		case '-':
+			f++;
+		case '+':
+			p++;
+		}
+		break;
 	}
 	while(*p >= '0' && *p <= '9')
 		n = n*10 + *p++ - '0';
-	if(f)
-		n = -n;
-	return(n);
+	return(f? -n: n);
 }
-- 
2.20.1