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authorAlan Coopersmith <alan.coopersmith@oracle.com>2011-12-12 16:49:34 -0800
committerAlan Coopersmith <alan.coopersmith@oracle.com>2011-12-12 17:03:10 -0800
commitd5a5eece670dee963765eab1431c21525c16d9ee (patch)
tree7ec3c57b2a7eec96e1589d3a1a57061b0a0c3531
parent83ac9502ea9f1dedf3a8002745668af16bb1f2af (diff)
CompareISOLatin1Lowered: constify arguments
Allows callers to avoid deconstifying arguments when calling, fixing gcc warning: filter.c: In function 'PictureGetFilterId': filter.c:59:2: warning: cast discards qualifiers from pointer target type Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
-rw-r--r--dix/dixutils.c4
-rw-r--r--include/dix.h4
-rw-r--r--render/filter.c3
3 files changed, 6 insertions, 5 deletions
diff --git a/dix/dixutils.c b/dix/dixutils.c
index 1e3134663..00bbde67c 100644
--- a/dix/dixutils.c
+++ b/dix/dixutils.c
@@ -167,8 +167,8 @@ ISOLatin1ToLower (unsigned char source)
int
-CompareISOLatin1Lowered(unsigned char *s1, int s1len,
- unsigned char *s2, int s2len)
+CompareISOLatin1Lowered(const unsigned char *s1, int s1len,
+ const unsigned char *s2, int s2len)
{
unsigned char c1, c2;
diff --git a/include/dix.h b/include/dix.h
index cfbfa1f41..2d8d315c5 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -175,9 +175,9 @@ extern _X_HIDDEN Bool CreateConnectionBlock(void);
/* dixutils.c */
extern _X_EXPORT int CompareISOLatin1Lowered(
- unsigned char * /*a*/,
+ const unsigned char * /*a*/,
int alen,
- unsigned char * /*b*/,
+ const unsigned char * /*b*/,
int blen);
extern _X_EXPORT int dixLookupWindow(
diff --git a/render/filter.c b/render/filter.c
index 0cbd47bd2..c513ee8f9 100644
--- a/render/filter.c
+++ b/render/filter.c
@@ -56,7 +56,8 @@ PictureGetFilterId (const char *filter, int len, Bool makeit)
if (len < 0)
len = strlen (filter);
for (i = 0; i < nfilterNames; i++)
- if (!CompareISOLatin1Lowered ((unsigned char *) filterNames[i], -1, (unsigned char *) filter, len))
+ if (!CompareISOLatin1Lowered ((const unsigned char *) filterNames[i], -1,
+ (const unsigned char *) filter, len))
return i;
if (!makeit)
return -1;