message_traits.h File Reference

#include "message_forward.h"
#include <ros/time.h>
#include <string>
#include <boost/utility/enable_if.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/type_traits/remove_reference.hpp>

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Classes
struct	ros::message_traits::DataType< M >
	Specialize to provide the datatype for a message. More...
struct	ros::message_traits::Definition< M >
	Specialize to provide the definition for a message. More...
struct	ros::message_traits::FalseType
	Base type for compile-type true/false tests. Compatible with Boost.MPL. classes inheriting from this type are false values. More...
struct	ros::message_traits::FrameId< M, Enable >
	FrameId trait. In the default implementation pointer() returns &m.header.frame_id if HasHeader<M>::value is true, otherwise returns NULL. value() does not exist, and causes a compile error. More...
struct	ros::message_traits::FrameId< M, typename boost::enable_if< HasHeader< M > >::type >
struct	ros::message_traits::HasHeader< M >
	HasHeader informs whether or not there is a header that gets serialized as the first thing in the message. More...
struct	ros::message_traits::Header< M, Enable >
	Header trait. In the default implementation pointer() returns &m.header if HasHeader<M>::value is true, otherwise returns NULL. More...
struct	ros::message_traits::Header< M, typename boost::enable_if< HasHeader< M > >::type >
struct	ros::message_traits::IsFixedSize< M >
	A fixed-size datatype is one whose size is constant, i.e. it has no variable-length arrays or strings. More...
struct	ros::message_traits::IsMessage< M >
	Am I message or not. More...
struct	ros::message_traits::IsSimple< M >
	A simple datatype is one that can be memcpy'd directly in array form, i.e. it's a POD, fixed-size type and sizeof(M) == sum(serializationLength(M:a...)) More...
struct	ros::message_traits::MD5Sum< M >
	Specialize to provide the md5sum for a message. More...
struct	ros::message_traits::TimeStamp< M, Enable >
	TimeStamp trait. In the default implementation pointer() returns &m.header.stamp if HasHeader<M>::value is true, otherwise returns NULL. value() does not exist, and causes a compile error. More...
struct	ros::message_traits::TimeStamp< M, typename boost::enable_if< HasHeader< M > >::type >
struct	ros::message_traits::TrueType
	Base type for compile-type true/false tests. Compatible with Boost.MPL. classes inheriting from this type are true values. More...
Namespaces
namespace	ros
namespace	ros::message_traits
namespace	std_msgs
Defines
#define	ROS_IMPLEMENT_SIMPLE_TOPIC_TRAITS(msg, md5sum, datatype, definition)
Functions
template<typename M >
const char *	ros::message_traits::datatype ()
	returns DataType<M>::value();
template<typename M >
const char *	ros::message_traits::datatype (const M &m)
	returns DataType<M>::value(m);
template<typename M >
const char *	ros::message_traits::definition ()
	returns Definition<M>::value();
template<typename M >
const char *	ros::message_traits::definition (const M &m)
	returns Definition<M>::value(m);
template<typename M >
std::string *	ros::message_traits::frameId (M &m)
	returns FrameId<M>::pointer(m);
template<typename M >
std::string const *	ros::message_traits::frameId (const M &m)
	returns FrameId<M>::pointer(m);
template<typename M >
bool	ros::message_traits::hasHeader ()
	returns HasHeader<M>::value;
template<typename M >
std_msgs::Header *	ros::message_traits::header (M &m)
	returns Header<M>::pointer(m);
template<typename M >
std_msgs::Header const *	ros::message_traits::header (const M &m)
	returns Header<M>::pointer(m);
template<typename M >
bool	ros::message_traits::isFixedSize ()
	returns IsFixedSize<M>::value;
template<typename M >
bool	ros::message_traits::isSimple ()
	returns IsSimple<M>::value;
template<typename M >
const char *	ros::message_traits::md5sum ()
	returns MD5Sum<M>::value();
template<typename M >
const char *	ros::message_traits::md5sum (const M &m)
	returns MD5Sum<M>::value(m);
	std_msgs::ROS_DECLARE_MESSAGE (Header)
template<typename M >
ros::Time *	ros::message_traits::timeStamp (M &m)
	returns TimeStamp<M>::pointer(m);
template<typename M >
ros::Time const *	ros::message_traits::timeStamp (const M &m)
	returns TimeStamp<M>::pointer(m);

---

Define Documentation

#define ROS_IMPLEMENT_SIMPLE_TOPIC_TRAITS	(		msg,
			md5sum,
			datatype,
			definition
	)

Value:

namespace ros \
  { \
  namespace message_traits \
  { \
  template<> struct MD5Sum<msg> \
  { \
    static const char* value() { return md5sum; } \
    static const char* value(const msg&) { return value(); } \
  }; \
  template<> struct DataType<msg> \
  { \
    static const char* value() { return datatype; } \
    static const char* value(const msg&) { return value(); } \
  }; \
  template<> struct Definition<msg> \
  { \
    static const char* value() { return definition; } \
    static const char* value(const msg&) { return value(); } \
  }; \
  } \
  }

Definition at line 45 of file message_traits.h.