{
void *addr;
int value;
+ double floating;
}
deque_entry;
return this->count > 0 ? this->list[ 0 ].value : 0;
}
+/** Push an item to the end.
+*/
+
+int mlt_deque_push_back_double( mlt_deque this, double item )
+{
+ int error = mlt_deque_allocate( this );
+
+ if ( error == 0 )
+ this->list[ this->count ++ ].floating = item;
+
+ return error;
+}
+
+/** Pop an item.
+*/
+
+double mlt_deque_pop_back_double( mlt_deque this )
+{
+ return this->count > 0 ? this->list[ -- this->count ].floating : 0;
+}
+
+/** Queue an item at the start.
+*/
+
+int mlt_deque_push_front_double( mlt_deque this, double item )
+{
+ int error = mlt_deque_allocate( this );
+
+ if ( error == 0 )
+ {
+ memmove( &this->list[ 1 ], this->list, ( this->count ++ ) * sizeof( deque_entry ) );
+ this->list[ 0 ].floating = item;
+ }
+
+ return error;
+}
+
+/** Remove an item from the start.
+*/
+
+double mlt_deque_pop_front_double( mlt_deque this )
+{
+ double item = 0;
+
+ if ( this->count > 0 )
+ {
+ item = this->list[ 0 ].floating;
+ memmove( this->list, &this->list[ 1 ], ( -- this->count ) * sizeof( deque_entry ) );
+ }
+
+ return item;
+}
+
+/** Inquire on item at back of deque but don't remove.
+*/
+
+double mlt_deque_peek_back_double( mlt_deque this )
+{
+ return this->count > 0 ? this->list[ this->count - 1 ].floating : 0;
+}
+
+/** Inquire on item at front of deque but don't remove.
+*/
+
+double mlt_deque_peek_front_double( mlt_deque this )
+{
+ return this->count > 0 ? this->list[ 0 ].floating : 0;
+}
+
/** Close the queue.
*/