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lvzhengyang
git2
Commits
18e836cb
Unverified
Commit
18e836cb
authored
Apr 04, 2019
by
Edward Thomson
Committed by
GitHub
Apr 04, 2019
Browse files
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Merge pull request #5018 from romkatv/strings
Optimize string comparisons
parents
9aa049d4
30a56ba6
Hide whitespace changes
Inline
Side-by-side
Showing
2 changed files
with
15 additions
and
19 deletions
+15
-19
src/util.c
+12
-17
src/util.h
+3
-2
No files found.
src/util.c
View file @
18e836cb
...
...
@@ -204,13 +204,6 @@ int git__strntol32(int32_t *result, const char *nptr, size_t nptr_len, const cha
return
error
;
}
int
git__strcmp
(
const
char
*
a
,
const
char
*
b
)
{
while
(
*
a
&&
*
b
&&
*
a
==
*
b
)
++
a
,
++
b
;
return
(
int
)(
*
(
const
unsigned
char
*
)
a
)
-
(
int
)(
*
(
const
unsigned
char
*
)
b
);
}
int
git__strcasecmp
(
const
char
*
a
,
const
char
*
b
)
{
while
(
*
a
&&
*
b
&&
git__tolower
(
*
a
)
==
git__tolower
(
*
b
))
...
...
@@ -240,15 +233,6 @@ int git__strcasesort_cmp(const char *a, const char *b)
return
cmp
;
}
int
git__strncmp
(
const
char
*
a
,
const
char
*
b
,
size_t
sz
)
{
while
(
sz
&&
*
a
&&
*
b
&&
*
a
==
*
b
)
--
sz
,
++
a
,
++
b
;
if
(
!
sz
)
return
0
;
return
(
int
)(
*
(
const
unsigned
char
*
)
a
)
-
(
int
)(
*
(
const
unsigned
char
*
)
b
);
}
int
git__strncasecmp
(
const
char
*
a
,
const
char
*
b
,
size_t
sz
)
{
int
al
,
bl
;
...
...
@@ -301,7 +285,18 @@ GIT_INLINE(int) prefixcmp(const char *str, size_t str_n, const char *prefix, boo
int
git__prefixcmp
(
const
char
*
str
,
const
char
*
prefix
)
{
return
prefixcmp
(
str
,
SIZE_MAX
,
prefix
,
false
);
unsigned
char
s
,
p
;
while
(
1
)
{
p
=
*
prefix
++
;
s
=
*
str
++
;
if
(
!
p
)
return
0
;
if
(
s
!=
p
)
return
s
-
p
;
}
}
int
git__prefixncmp
(
const
char
*
str
,
size_t
str_n
,
const
char
*
prefix
)
...
...
src/util.h
View file @
18e836cb
...
...
@@ -150,12 +150,13 @@ extern int git__bsearch_r(
void
*
payload
,
size_t
*
position
);
#define git__strcmp strcmp
#define git__strncmp strncmp
extern
int
git__strcmp_cb
(
const
void
*
a
,
const
void
*
b
);
extern
int
git__strcasecmp_cb
(
const
void
*
a
,
const
void
*
b
);
extern
int
git__strcmp
(
const
char
*
a
,
const
char
*
b
);
extern
int
git__strcasecmp
(
const
char
*
a
,
const
char
*
b
);
extern
int
git__strncmp
(
const
char
*
a
,
const
char
*
b
,
size_t
sz
);
extern
int
git__strncasecmp
(
const
char
*
a
,
const
char
*
b
,
size_t
sz
);
extern
int
git__strcasesort_cmp
(
const
char
*
a
,
const
char
*
b
);
...
...
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