From: Junio C Hamano Date: Fri, 22 Aug 2014 15:57:50 GMT Subject: Re: [PATCH v3 2/3] Introduce GIT_MMAP_LIMIT to allow testing expected mmap size Message-ID: In-Reply-To: <0342479D-7C9F-42E6-9B79-745AEDE57EB5@zib.de> Steffen Prohaska writes: >>> + if (limit == -1) { >>> + const char *env = getenv("GIT_MMAP_LIMIT"); >>> + limit = env ? atoi(env) * 1024 : 0; > > ... this should then be changed to atol(env), and ... In the real codepath (not debugging aid like this) we try to avoid atoi/atol so that we can catch errors like feeding "123Q" and parsing it as 123.