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体验新版 GitCode,发现更多精彩内容 >>
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9f42a56a
编写于
4月 21, 1997
作者:
V
Vadim B. Mikheev
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Fix for text_lt/text_le to avoid warnings if not def USE_LOCALE.
上级
42e72503
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
31 addition
and
31 deletion
+31
-31
src/backend/utils/adt/varlena.c
src/backend/utils/adt/varlena.c
+31
-31
未找到文件。
src/backend/utils/adt/varlena.c
浏览文件 @
9f42a56a
...
...
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.1
3 1997/04/09 08:29:35 scrappy
Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.1
4 1997/04/21 04:31:53 vadim
Exp $
*
*-------------------------------------------------------------------------
*/
...
...
@@ -288,21 +288,19 @@ textne(struct varlena *arg1, struct varlena *arg2)
/* text_lt()
* Comparison function for text strings.
* Includes locale support, but must copy strings to temporary memory
* to allow null-termination for inputs to strcoll().
* XXX HACK code for textlen() indicates that there can be embedded nulls
* but it appears that most routines (incl. this one) assume not! - tgl 97/04/07
* to allow null-termination for inputs to strcoll().
*/
bool
text_lt
(
struct
varlena
*
arg1
,
struct
varlena
*
arg2
)
{
bool
result
;
int
cval
;
int
len
;
#ifdef UNSIGNED_CHAR_TEXT
unsigned
#endif
char
*
a1p
,
*
a2p
;
#ifdef USE_LOCALE
int
cval
;
#endif
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
FALSE
);
...
...
@@ -310,11 +308,9 @@ text_lt(struct varlena *arg1, struct varlena *arg2)
len
=
(((
VARSIZE
(
arg1
)
<=
VARSIZE
(
arg2
))
?
VARSIZE
(
arg1
)
:
VARSIZE
(
arg2
))
-
VARHDRSZ
);
#ifdef USE_LOCALE
if
(
!
PointerIsValid
(
a1p
=
PALLOC
(
len
+
1
))
||
!
PointerIsValid
(
a2p
=
PALLOC
(
len
+
1
)))
{
elog
(
WARN
,
"Unable to allocate memory for text comparison"
,
NULL
);
return
(
FALSE
);
};
a1p
=
palloc
(
len
+
1
);
a2p
=
palloc
(
len
+
1
);
memcpy
(
a1p
,
VARDATA
(
arg1
),
len
);
*
(
a1p
+
len
)
=
'\0'
;
...
...
@@ -322,13 +318,15 @@ text_lt(struct varlena *arg1, struct varlena *arg2)
*
(
a2p
+
len
)
=
'\0'
;
cval
=
strcoll
(
a1p
,
a2p
);
result
=
((
cval
<
0
)
||
((
cval
==
0
)
&&
(
VARSIZE
(
arg1
)
<
VARSIZE
(
arg2
))));
pfree
(
a1p
);
pfree
(
a2p
);
PFREE
(
a1p
);
PFREE
(
a2p
);
return
((
bool
)
(
(
cval
<
0
)
||
(
(
cval
==
0
)
&&
(
VARSIZE
(
arg1
)
<
VARSIZE
(
arg2
))
)
)
);
return
(
result
);
#else
a1p
=
(
unsigned
char
*
)
VARDATA
(
arg1
);
a2p
=
(
unsigned
char
*
)
VARDATA
(
arg2
);
...
...
@@ -338,27 +336,27 @@ text_lt(struct varlena *arg1, struct varlena *arg2)
len
--
;
};
return
((
bool
)
(
len
?
(
*
a1p
<
*
a2p
)
:
(
VARSIZE
(
arg1
)
<
VARSIZE
(
arg2
))));
#endif
}
/* text_lt() */
/* text_le()
* Comparison function for text strings.
* Includes locale support, but must copy strings to temporary memory
* to allow null-termination for inputs to strcoll().
* XXX HACK code for textlen() indicates that there can be embedded nulls
* but it appears that most routines (incl. this one) assume not! - tgl 97/04/07
* to allow null-termination for inputs to strcoll().
*/
bool
text_le
(
struct
varlena
*
arg1
,
struct
varlena
*
arg2
)
{
bool
result
;
int
cval
;
int
len
;
#ifdef UNSIGNED_CHAR_TEXT
unsigned
#endif
char
*
a1p
,
*
a2p
;
#ifdef USE_LOCALE
int
cval
;
#endif
if
(
arg1
==
NULL
||
arg2
==
NULL
)
return
((
bool
)
0
);
...
...
@@ -366,11 +364,9 @@ text_le(struct varlena *arg1, struct varlena *arg2)
len
=
(((
VARSIZE
(
arg1
)
<=
VARSIZE
(
arg2
))
?
VARSIZE
(
arg1
)
:
VARSIZE
(
arg2
))
-
VARHDRSZ
);
#ifdef USE_LOCALE
if
(
!
PointerIsValid
(
a1p
=
PALLOC
(
len
+
1
))
||
!
PointerIsValid
(
a2p
=
PALLOC
(
len
+
1
)))
{
elog
(
WARN
,
"Unable to allocate memory for text comparison"
,
NULL
);
return
(
FALSE
);
};
a1p
=
palloc
(
len
+
1
);
a2p
=
palloc
(
len
+
1
);
memcpy
(
a1p
,
VARDATA
(
arg1
),
len
);
*
(
a1p
+
len
)
=
'\0'
;
...
...
@@ -378,13 +374,15 @@ text_le(struct varlena *arg1, struct varlena *arg2)
*
(
a2p
+
len
)
=
'\0'
;
cval
=
strcoll
(
a1p
,
a2p
);
result
=
((
cval
<
0
)
||
((
cval
==
0
)
&&
(
VARSIZE
(
arg1
)
<=
VARSIZE
(
arg2
))));
pfree
(
a1p
);
pfree
(
a2p
);
PFREE
(
a1p
);
PFREE
(
a2p
);
return
((
bool
)
(
(
cval
<
0
)
||
(
(
cval
==
0
)
&&
(
VARSIZE
(
arg1
)
<=
VARSIZE
(
arg2
))
)
)
);
return
(
result
);
#else
a1p
=
(
unsigned
char
*
)
VARDATA
(
arg1
);
a2p
=
(
unsigned
char
*
)
VARDATA
(
arg2
);
...
...
@@ -395,7 +393,9 @@ text_le(struct varlena *arg1, struct varlena *arg2)
};
return
((
bool
)
(
len
?
(
*
a1p
<=
*
a2p
)
:
(
VARSIZE
(
arg1
)
<=
VARSIZE
(
arg2
))));
#endif
}
/* text_le() */
bool
...
...
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