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* [PATCH 01/12] kstrto*: accept "-0" for signed conversion
@ 2015-05-08 18:29 Alexey Dobriyan
  2015-05-08 18:30 ` [PATCH 02/12] Add parse_integer() (replacement for simple_strto*()) Alexey Dobriyan
                   ` (10 more replies)
  0 siblings, 11 replies; 19+ messages in thread
From: Alexey Dobriyan @ 2015-05-08 18:29 UTC (permalink / raw)
  To: akpm; +Cc: linux-kernel, linux

strtol(3) et al accept "-0", so should we.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
 lib/kstrtox.c      | 2 +-
 lib/test-kstrtox.c | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index ec8da78..94be244 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -152,7 +152,7 @@ int kstrtoll(const char *s, unsigned int base, long long *res)
 		rv = _kstrtoull(s + 1, base, &tmp);
 		if (rv < 0)
 			return rv;
-		if ((long long)(-tmp) >= 0)
+		if ((long long)-tmp > 0)
 			return -ERANGE;
 		*res = -tmp;
 	} else {
diff --git a/lib/test-kstrtox.c b/lib/test-kstrtox.c
index 4137bca..f355f67 100644
--- a/lib/test-kstrtox.c
+++ b/lib/test-kstrtox.c
@@ -260,6 +260,7 @@ static void __init test_kstrtoll_ok(void)
 		{"4294967297",	10,	4294967297LL},
 		{"9223372036854775807",	10,	9223372036854775807LL},
 
+		{"-0",	10,	0LL},
 		{"-1",	10,	-1LL},
 		{"-2",	10,	-2LL},
 		{"-9223372036854775808",	10,	LLONG_MIN},
@@ -277,11 +278,6 @@ static void __init test_kstrtoll_fail(void)
 		{"-9223372036854775809",	10},
 		{"-18446744073709551614",	10},
 		{"-18446744073709551615",	10},
-		/* negative zero isn't an integer in Linux */
-		{"-0",	0},
-		{"-0",	8},
-		{"-0",	10},
-		{"-0",	16},
 		/* sign is first character if any */
 		{"-+1", 0},
 		{"-+1", 8},

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2015-07-10  6:46 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-05-08 18:29 [PATCH 01/12] kstrto*: accept "-0" for signed conversion Alexey Dobriyan
2015-05-08 18:30 ` [PATCH 02/12] Add parse_integer() (replacement for simple_strto*()) Alexey Dobriyan
2015-05-08 20:46   ` Andrew Morton
2015-05-08 21:52     ` Rasmus Villemoes
2015-05-10 13:52     ` Alexey Dobriyan
2015-05-13 12:19       ` Alexey Dobriyan
2015-05-10 15:52   ` Noel Grandin
2015-07-09 19:28   ` Andrew Morton
2015-07-10  6:46     ` Alexey Dobriyan
2015-05-08 18:31 ` [PATCH 03/12] parse_integer: add runtime testsuite Alexey Dobriyan
2015-05-08 18:33 ` [PATCH 04/12] parse-integer: rewrite kstrto*() Alexey Dobriyan
2015-05-08 18:33 ` [PATCH 05/12] parse_integer: convert scanf() Alexey Dobriyan
2015-05-08 18:34 ` [PATCH 06/12] scanf: fix type range overflow Alexey Dobriyan
2015-05-08 18:35 ` [PATCH 07/12] parse_integer: convert lib/ Alexey Dobriyan
2015-05-08 18:35 ` [PATCH 08/12] parse_integer: convert mm/ Alexey Dobriyan
2015-05-08 18:36 ` [PATCH 09/12] parse_integer: convert fs/ Alexey Dobriyan
2015-05-08 18:37 ` [PATCH 10/37] parse_integer: convert fs/cachefiles/ Alexey Dobriyan
2015-05-08 18:39 ` [PATCH 11/12] parse_integer: convert ext2, ext3, ext4 Alexey Dobriyan
2015-05-08 18:40 ` [PATCH 12/12] parse_integer: convert fs/ocfs2/ Alexey Dobriyan

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