HTP - a library for realtime detection of hotspots: ssp_count

00001 /* ssp_count_ones.h */
00002 
00003 /* Copyright 2005 Ben Hyde
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include <apr.h>
00019 
00020 /** \file ssp_count_ones.h
00021  * \brief A routine for counting the nonzero bits in data.
00022  */
00023 
00024 /** Count the number of one bits in an unsigned 64 bit integer.
00025  *
00026  * The implementation is very naive.
00027  */
00028 
00029 extern int ssp_count_ones(apr_uint64_t a);