qf_act.cpp File Reference

QP::QActive services and QF support code. More...

#include "qf_port.hpp"
#include "qf_pkg.hpp"
#include "qassert.h"
#include "qs_port.hpp"
#include "qs_pkg.hpp"

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Namespaces
namespace	QP
	namespace associated with the QP/C++ framework

Functions
std::uint_fast8_t	QF_LOG2 (QP::QPSetBits x) noexcept
	function that returns (log2(x) + 1), where x is a 32-bit bitmask More...

Detailed Description

Date

Last updated on: 2021-12-23

Version

Last updated for: Version 7.0.0, 2022-04-30

Definition in file qf_act.cpp.

Function Documentation

QF_LOG2()

std::uint_fast8_t QF_LOG2 ( QP::QPSetBits  x )

noexcept

Description

This function returns the 1-based number of the most significant 1-bit of a 32-bit bitmask. This function can be replaced in the QP ports, if the CPU has special instructions, such as CLZ (count leading zeros).

Definition at line 139 of file qf_act.cpp.