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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.0 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
unsigned char log2_approx(unsigned int x)
{
int i;
unsigned char l2;
l2=0;
for (i=0; i<31; i++)
if ((x&(1<<i)) != 0)
l2 = i+1;
//l2 = i;
// printf("log2_approx = %d\n",l2);
return(l2);
}
unsigned char factor2(unsigned int x)
{
int i;
unsigned char l2;
l2=0;
for (i=0; i<31; i++)
if ((x&(1<<i)) != 0)
break;
l2 = i;
//printf("factor2(%d) = %d\n",x,l2);
return(l2);
}
unsigned char log2_approx64(unsigned long long int x)
{
int i;
unsigned char l2;
l2=0;
for (i=0; i<63; i++)
if ((x&(((long long int) 1)<<i)) != 0)
// l2 = i+1;
l2 = i;
// printf("log2_approx = %d\n",l2);
return(l2);
}