From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: [PATCH kvm-unit-test 4/6] Introduce atol() Date: Fri, 27 Aug 2010 13:49:37 +0800 Message-ID: <20100827054937.7409.91773.stgit@FreeLancer> References: <20100827054733.7409.63882.stgit@FreeLancer> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: glommer@redhat.com To: mtosatti@redhat.com, avi@redhat.com, kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:16722 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753009Ab0H0Ftl (ORCPT ); Fri, 27 Aug 2010 01:49:41 -0400 Received: from int-mx08.intmail.prod.int.phx2.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o7R5neqY023496 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 27 Aug 2010 01:49:40 -0400 In-Reply-To: <20100827054733.7409.63882.stgit@FreeLancer> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Jason Wang --- lib/string.c | 31 +++++++++++++++++++++++++++++++ 1 files changed, 31 insertions(+), 0 deletions(-) diff --git a/lib/string.c b/lib/string.c index acac3c0..1f19f5c 100644 --- a/lib/string.c +++ b/lib/string.c @@ -30,3 +30,34 @@ void *memset(void *s, int c, size_t n) return s; } + +long atol(const char *ptr) +{ + long acc = 0; + const char *s = ptr; + int neg, c; + + while (*s == ' ' || *s == '\t') + s++; + if (*s == '-'){ + neg = 1; + s++; + } else { + neg = 0; + if (*s == '+') + s++; + } + + while (*s) { + if (*s < '0' || *s > '9') + break; + c = *s - '0'; + acc = acc * 10 + c; + s++; + } + + if (neg) + acc = -acc; + + return acc; +}