This file is indexed.

/usr/include/sensor_msgs/ChannelFloat32.h is in libsensor-msgs-dev 1.12.3-5.

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The actual contents of the file can be viewed below.

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// Generated by gencpp from file sensor_msgs/ChannelFloat32.msg
// DO NOT EDIT!


#ifndef SENSOR_MSGS_MESSAGE_CHANNELFLOAT32_H
#define SENSOR_MSGS_MESSAGE_CHANNELFLOAT32_H


#include <string>
#include <vector>
#include <map>

#include <ros/types.h>
#include <ros/serialization.h>
#include <ros/builtin_message_traits.h>
#include <ros/message_operations.h>


namespace sensor_msgs
{
template <class ContainerAllocator>
struct ChannelFloat32_
{
  typedef ChannelFloat32_<ContainerAllocator> Type;

  ChannelFloat32_()
    : name()
    , values()  {
    }
  ChannelFloat32_(const ContainerAllocator& _alloc)
    : name(_alloc)
    , values(_alloc)  {
    }



   typedef std::basic_string<char, std::char_traits<char>, typename ContainerAllocator::template rebind<char>::other >  _name_type;
  _name_type name;

   typedef std::vector<float, typename ContainerAllocator::template rebind<float>::other >  _values_type;
  _values_type values;




  typedef boost::shared_ptr< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> > Ptr;
  typedef boost::shared_ptr< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> const> ConstPtr;

}; // struct ChannelFloat32_

typedef ::sensor_msgs::ChannelFloat32_<std::allocator<void> > ChannelFloat32;

typedef boost::shared_ptr< ::sensor_msgs::ChannelFloat32 > ChannelFloat32Ptr;
typedef boost::shared_ptr< ::sensor_msgs::ChannelFloat32 const> ChannelFloat32ConstPtr;

// constants requiring out of line definition



template<typename ContainerAllocator>
std::ostream& operator<<(std::ostream& s, const ::sensor_msgs::ChannelFloat32_<ContainerAllocator> & v)
{
ros::message_operations::Printer< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >::stream(s, "", v);
return s;
}

} // namespace sensor_msgs

namespace ros
{
namespace message_traits
{



// BOOLTRAITS {'IsFixedSize': False, 'IsMessage': True, 'HasHeader': False}
// {'std_msgs': ['/usr/share/std_msgs/cmake/../msg'], 'geometry_msgs': ['/build/ros-common-msgs-b5ydaM/ros-common-msgs-1.12.3/geometry_msgs/msg'], 'sensor_msgs': ['/build/ros-common-msgs-b5ydaM/ros-common-msgs-1.12.3/sensor_msgs/msg']}

// !!!!!!!!!!! ['__class__', '__delattr__', '__dict__', '__doc__', '__eq__', '__format__', '__getattribute__', '__hash__', '__init__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_parsed_fields', 'constants', 'fields', 'full_name', 'has_header', 'header_present', 'names', 'package', 'parsed_fields', 'short_name', 'text', 'types']




template <class ContainerAllocator>
struct IsFixedSize< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
  : FalseType
  { };

template <class ContainerAllocator>
struct IsFixedSize< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> const>
  : FalseType
  { };

template <class ContainerAllocator>
struct IsMessage< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
  : TrueType
  { };

template <class ContainerAllocator>
struct IsMessage< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> const>
  : TrueType
  { };

template <class ContainerAllocator>
struct HasHeader< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
  : FalseType
  { };

template <class ContainerAllocator>
struct HasHeader< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> const>
  : FalseType
  { };


template<class ContainerAllocator>
struct MD5Sum< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
{
  static const char* value()
  {
    return "3d40139cdd33dfedcb71ffeeeb42ae7f";
  }

  static const char* value(const ::sensor_msgs::ChannelFloat32_<ContainerAllocator>&) { return value(); }
  static const uint64_t static_value1 = 0x3d40139cdd33dfedULL;
  static const uint64_t static_value2 = 0xcb71ffeeeb42ae7fULL;
};

template<class ContainerAllocator>
struct DataType< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
{
  static const char* value()
  {
    return "sensor_msgs/ChannelFloat32";
  }

  static const char* value(const ::sensor_msgs::ChannelFloat32_<ContainerAllocator>&) { return value(); }
};

template<class ContainerAllocator>
struct Definition< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
{
  static const char* value()
  {
    return "# This message is used by the PointCloud message to hold optional data\n\
# associated with each point in the cloud. The length of the values\n\
# array should be the same as the length of the points array in the\n\
# PointCloud, and each value should be associated with the corresponding\n\
# point.\n\
\n\
# Channel names in existing practice include:\n\
#   \"u\", \"v\" - row and column (respectively) in the left stereo image.\n\
#              This is opposite to usual conventions but remains for\n\
#              historical reasons. The newer PointCloud2 message has no\n\
#              such problem.\n\
#   \"rgb\" - For point clouds produced by color stereo cameras. uint8\n\
#           (R,G,B) values packed into the least significant 24 bits,\n\
#           in order.\n\
#   \"intensity\" - laser or pixel intensity.\n\
#   \"distance\"\n\
\n\
# The channel name should give semantics of the channel (e.g.\n\
# \"intensity\" instead of \"value\").\n\
string name\n\
\n\
# The values array should be 1-1 with the elements of the associated\n\
# PointCloud.\n\
float32[] values\n\
";
  }

  static const char* value(const ::sensor_msgs::ChannelFloat32_<ContainerAllocator>&) { return value(); }
};

} // namespace message_traits
} // namespace ros

namespace ros
{
namespace serialization
{

  template<class ContainerAllocator> struct Serializer< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
  {
    template<typename Stream, typename T> inline static void allInOne(Stream& stream, T m)
    {
      stream.next(m.name);
      stream.next(m.values);
    }

    ROS_DECLARE_ALLINONE_SERIALIZER;
  }; // struct ChannelFloat32_

} // namespace serialization
} // namespace ros

namespace ros
{
namespace message_operations
{

template<class ContainerAllocator>
struct Printer< ::sensor_msgs::ChannelFloat32_<ContainerAllocator> >
{
  template<typename Stream> static void stream(Stream& s, const std::string& indent, const ::sensor_msgs::ChannelFloat32_<ContainerAllocator>& v)
  {
    s << indent << "name: ";
    Printer<std::basic_string<char, std::char_traits<char>, typename ContainerAllocator::template rebind<char>::other > >::stream(s, indent + "  ", v.name);
    s << indent << "values[]" << std::endl;
    for (size_t i = 0; i < v.values.size(); ++i)
    {
      s << indent << "  values[" << i << "]: ";
      Printer<float>::stream(s, indent + "  ", v.values[i]);
    }
  }
};

} // namespace message_operations
} // namespace ros

#endif // SENSOR_MSGS_MESSAGE_CHANNELFLOAT32_H