From: "Ævar Arnfjörð Bjarmason" <avarab@gmail•com>
To: git@vger•kernel.org
Cc: "Junio C Hamano" <gitster@pobox•com>,
"Jim Meyering" <jim@meyering•net>,
"Fredrik Gustafsson" <iveqy@iveqy•com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail•com>
Subject: [PATCH 1/3] apply: get rid of useless x < 0 comparison on a size_t type
Date: Sun, 6 Nov 2011 13:06:22 +0100 [thread overview]
Message-ID: <1320581184-4557-2-git-send-email-avarab@gmail.com> (raw)
In-Reply-To: <1320581184-4557-1-git-send-email-avarab@gmail.com>
According to the C standard size_t is always unsigned, therefore the
comparison "n1 < 0 || n2 < 0" when n1 and n2 are size_t will always be
false.
This was raised by clang 2.9 which throws this warning when compiling
apply.c:
builtin/apply.c:253:9: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (n1 < 0 || n2 < 0)
~~ ^ ~
builtin/apply.c:253:19: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (n1 < 0 || n2 < 0)
~~ ^ ~
This check was originally added in v1.6.5-rc0~53^2 by Giuseppe Bilotta
while adding an option to git-apply to ignore whitespace differences.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail•com>
---
builtin/apply.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index 84a8a0b..b3b59db 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -250,9 +250,6 @@ static int fuzzy_matchlines(const char *s1, size_t n1,
const char *last2 = s2 + n2 - 1;
int result = 0;
- if (n1 < 0 || n2 < 0)
- return 0;
-
/* ignore line endings */
while ((*last1 == '\r') || (*last1 == '\n'))
last1--;
--
1.7.6.3
next prev parent reply other threads:[~2011-11-06 12:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-06 12:06 [PATCH 0/3] Fix code issues spotted by clang Ævar Arnfjörð Bjarmason
2011-11-06 12:06 ` Ævar Arnfjörð Bjarmason [this message]
2011-11-06 18:35 ` [PATCH 1/3] apply: get rid of useless x < 0 comparison on a size_t type Junio C Hamano
2011-11-07 19:09 ` Giuseppe Bilotta
2011-11-06 12:06 ` [PATCH 2/3] diff/apply: cast variable in call to free() Ævar Arnfjörð Bjarmason
2011-11-06 12:06 ` [PATCH 3/3] grep: get rid of useless x < 0 comparison on an enum member Ævar Arnfjörð Bjarmason
2011-11-06 15:03 ` Andreas Schwab
2011-11-07 12:42 ` Ævar Arnfjörð Bjarmason
2011-11-07 13:12 ` Andreas Schwab
2011-11-07 16:38 ` Jeff King
2011-11-07 18:24 ` Andreas Schwab
2011-11-07 18:34 ` Jeff King
2011-11-07 18:55 ` Jeff King
2011-11-07 19:06 ` Ævar Arnfjörð Bjarmason
2011-11-07 20:13 ` Andreas Schwab
2011-11-07 19:49 ` Jonathan Nieder
2011-11-07 21:18 ` Junio C Hamano
2011-11-07 21:32 ` Jonathan Nieder
2011-11-07 21:48 ` Junio C Hamano
2011-11-07 22:21 ` Jonathan Nieder
2011-11-06 12:33 ` [PATCH 0/3] Fix code issues spotted by clang Ævar Arnfjörð Bjarmason
2011-11-08 16:05 ` Elijah Newren
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