* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
Returns a set including only those chars found in <parameter>a</parameter> but not <parameter>b</parameter>.
@@
-@RET@ FcCharSet *
+@RET@ FcBool
@FUNC@ FcCharSetMerge
-@TYPE1@ const FcCharSet * @ARG1@ a
+@TYPE1@ FcCharSet * @ARG1@ a
@TYPE2@ const FcCharSet * @ARG2@ b
+@TYPE3@ FcBool * @ARG3@ changed
@PURPOSE@ Merge charsets
@DESC@
-If <parameter>a</parameter> is NULL, returns a 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.
-Otherwise, adds all chars in <parameter>b</parameter> to <parameter>a</parameter> and returns <parameter>a</parameter>. In other words, this is an in-place versionof FcCharSetUnion.
+Adds all chars in <parameter>b</parameter> to <parameter>a</parameter>.
+In other words, this is an in-place version of FcCharSetUnion.
+If <parameter>changed</parameter> is not NULL, then it returns whether any new
+chars from <parameter>b</parameter> were added to <parameter>a</parameter>.
+Returns FcFalse on failure, either when <parameter>a</parameter> is a constant
+set or from running out of memory.
@@
@RET@ FcBool