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Don't use FcCharSetCopy in FcCharSetMerge 

The Copy function is actually a ref, not real copy.
This commit is contained in:
Behdad Esfahbod 2009-01-08 03:04:34 -05:00
parent d230cf144f
commit 25a09eb9bf
2 changed files with 5 additions and 4 deletions
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2
doc/fccharset.fncs
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@ -104,7 +104,7 @@ Returns a set including only those chars found in <parameter>a</parameter> but n
@TYPE2@ const FcCharSet * @ARG2@ b
@PURPOSE@ Merge charsets
@DESC@
If <parameter>a</parameter> is NULL, returns a copy of <parameter>b</parameter>.
If <parameter>a</parameter> is NULL, returns a newly-created copy of <parameter>b</parameter>.
If <parameter>a</parameter> is an FcCharSet object owned by fontconfig that
cannot be modified, it returns the union of <parameter>a</parameter> and
<parameter>b</parameter> in a newly-created FcCharSet object.

7
src/fccharset.c
View File

@ -459,14 +459,15 @@ FcCharSetMerge (FcCharSet *a, const FcCharSet *b)
FcCharSetIter ai, bi;
if (a == NULL) {
return FcCharSetCopy ((FcCharSet *) b);
fcs = a = FcCharSetCreate ();
} else if (a->ref == FC_REF_CONSTANT) {
fcs = FcCharSetCreate ();
if (fcs == NULL)
return NULL;
} else
fcs = a;
if (fcs == NULL)
return NULL;
FcCharSetIterStart (a, &ai);
FcCharSetIterStart (b, &bi);
while (ai.leaf || bi.leaf)