错误:否>匹配通话‘(boost :: _ mfi :: mf1< void [英] error: no > match for call to ‘(boost::_mfi::mf1<void

问题描述

我相当了解c ++，下面描述的一个问题可能很简单，并且是基于语法错误的，但是我还没有找到解决这个问题的方法. 基本上我得到的错误是:

I have rather a basic knowledge in c++ and there is an issue described in the following which is likely rather simple and a based on a syntax mistake but I haven't figured out a way around it. Basically the error I get says:

remote_hw_interface_node.cpp:23:68:   required from here
/usr/include/boost/function/function_template.hpp:231:11: error: no match for call to ‘(boost::_mfi::mf1<void, ROBOTHardwareInterface, const boost::shared_ptr<sensor_msgs::JointState_<std::allocator<void>
> > >&>) (const boost::shared_ptr<const sensor_msgs::JointState_<std::allocator<void> > >&)’
            BOOST_FUNCTION_RETURN(boost::mem_fn(*f)(BOOST_FUNCTION_ARGS));

    ^

关于增强功能，我不知道这是什么.

which I don't have any clue what it is about regarding boost.

关于我的代码，我在下面复制了其中的某些部分，对于有经验的c ++用户，这可能会显示出问题.我的头文件看起来像:

regarding my code I have copied some parts of it in the following which may likely show the problem for a more experienced c++ user. My header file looks like:

#pragma once

#include <message_filters/subscriber.h>
#include <message_filters/time_sequencer.h>


// controller manager and interface msgs
#include <controller_manager/controller_manager.h>


class ROBOTHardwareInterface : public hardware_interface::RobotHW 
{
    public:
        ROBOTHardwareInterface(ros::NodeHandle& nh);
        ~ROBOTHardwareInterface();

        bool init                 (const urdf::Model* const urdf_model);
        void sequential_update    (const boost::shared_ptr <sensor_msgs::JointState> & joint_state_msg);


    // main
        ros::NodeHandle nh_;
        ros::Duration elapsed_time_;
        boost::shared_ptr<controller_manager::ControllerManager> controller_manager_;
};

如果我仅复制相关部分也导致出现错误，则cpp文件也将出现:

the cpp file also if I only copy the relevant parts which has also caused the error coming up:

#include <remote_hw.h>

ROBOTHardwareInterface::ROBOTHardwareInterface(ros::NodeHandle& nh) : nh_(nh) {

    message_filters::Subscriber <sensor_msgs::JointState> sub(nh_, "joint_cmd_topic", 1);
    message_filters::TimeSequencer <sensor_msgs::JointState> seq(sub, ros::Duration(
    0.1), ros::Duration(0.01), 10);
    seq.registerCallback(&ROBOTHardwareInterface::sequential_update);

}

ROBOTHardwareInterface::~ROBOTHardwareInterface() {
}}

void ROBOTHardwareInterface::sequential_update(const boost::shared_ptr <sensor_msgs::JointState> & joint_state_msg){

推荐答案

通过在Boost库实现中进行搜索

By searching in boost library implementation https://www.boost.org/doc/libs/1_71_0/boost/function/function_template.hpp, it seems that you are trying to call a method without giving all the parameters necessary.

我想您尝试用一个空参数调用此方法，同时还应该添加const boost::shared_ptr <sensor_msgs::JointState> &.

I suppose that you try to invoke this method with an empty parameter, while you should also add const boost::shared_ptr <sensor_msgs::JointState> & as well.

我认为您的情况下BOOST_FUNCTION_ARGS为空，因此您遇到了问题.因此，后面的方法试图调用void sequential_update()而不是void sequential_update(const boost::shared_ptr <sensor_msgs::JointState> &)

I suppose that BOOST_FUNCTION_ARGS in your case is empty hence your issue. So the method behind is trying to invoke void sequential_update() instead of void sequential_update(const boost::shared_ptr <sensor_msgs::JointState> &)

我希望这会有所帮助.

这篇关于错误:否>匹配通话‘(boost :: _ mfi :: mf1< void的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！