Subscriber to /scan

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This the error i'm getting for the code m writting below. I'm trying to write a subscriber to /scan and a callback function which prints the angle_min on the terminal (ranges[] later). However i guess im making a mistake in the ROS_INFO(....) part. Please have a look and Please help. Thank You.

In function ‘void poseMessageReceived(const ConstPtr&)’: error: ‘const ConstPtr’ has no member named ‘angle_min’ make[2]: * [beginner_tutorials/CMakeFiles/lms.dir/src/lms.cpp.o] Error 1 make[1]: * [beginner_tutorials/CMakeFiles/lms.dir/all] Error 2

 #include "ros/ros.h"
    #include "sensor_msgs/LaserScan.h"
    #include "std_msgs/String.h"
    #include "iomanip"

    void poseMessageReceived(const sensor_msgs::LaserScan::ConstPtr& scan)
    {
        ROS_INFO("position=: [%f]",scan.angle_min);
    }

    int main(int argc,char **argv)
    {
        ros::init(argc,argv,"subscribe_to_scan");
        ros::NodeHandle n;

        //Create a subscriber object
        ros::Subscriber sub = n.subscribe("/Scan",1000, poseMessageReceived);

        //Let ROS take over
        ros::spin();

        return 0;
    }