src/include/math.h


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/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/include/math.h $                                          */
/*                                                                        */
/* IBM CONFIDENTIAL                                                       */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 2011,2012              */
/*                                                                        */
/* p1                                                                     */
/*                                                                        */
/* Object Code Only (OCO) source materials                                */
/* Licensed Internal Code Source Materials                                */
/* IBM HostBoot Licensed Internal Code                                    */
/*                                                                        */
/* The source code for this program is not published or otherwise         */
/* divested of its trade secrets, irrespective of what has been           */
/* deposited with the U.S. Copyright Office.                              */
/*                                                                        */
/* Origin: 30                                                             */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
#include <stdint.h>
#include <builtins.h>

#ifndef _MATH_H
#define _MATH_H

#ifdef __cplusplus
extern "C"
{
#endif

ALWAYS_INLINE
static inline int64_t log2(uint64_t s)
{
    int64_t n = cntlzd(s);
    return 63-n;
}

double sqrt(double) __attribute__((const));

#ifdef __cplusplus
};
#endif

#endif