Orocos Real-Time Toolkit  2.9.0
StdStringTypeInfo.hpp
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1 /***************************************************************************
2  tag: The SourceWorks Tue Sep 7 00:55:18 CEST 2010 StdStringTypeInfo.hpp
3 
4  StdStringTypeInfo.hpp - description
5  -------------------
6  begin : Tue September 07 2010
7  copyright : (C) 2010 The SourceWorks
8  email : peter@thesourceworks.com
9 
10  ***************************************************************************
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37 
38 
39 #include <string>
40 #include "../types/SequenceTypeInfo.hpp"
41 #include "../types/TemplateTypeInfo.hpp"
42 
43 namespace RTT
44 {
45  namespace types
46  {
47 
51  struct StdStringTypeInfo: public SequenceTypeInfo<std::string, true>
52  {
53  StdStringTypeInfo(const std::string& tname = "string") :
54  SequenceTypeInfo<std::string, true> (tname)
55  {
56  }
57 
58  base::AttributeBase* buildVariable(std::string name, int size) const
59  {
60  std::string t_init(size, ' '); // we can't use the default char(), which is null !
61 
62  // returned type is identical to parent, but we set spaces.
65  tt.set(t_init);
66  return ret;
67  }
68 
70  {
71  return result->update( source.get() );
72  }
73 
78  return source;
79  }
80 
81  };
82  }
83 }
Standard string specialisation that removes decomposition.
virtual base::DataSourceBase::shared_ptr decomposeType(base::DataSourceBase::shared_ptr source) const
A string is decomposed into itself.
STL namespace.
void set(T const &t)
Set the value of this Attribute.
Definition: Attribute.hpp:199
StdStringTypeInfo(const std::string &tname="string")
An attribute is a minimalistic, named placeholder for data.
virtual bool composeType(base::DataSourceBase::shared_ptr source, base::DataSourceBase::shared_ptr result) const
base::AttributeBase * buildVariable(std::string name, int size) const
Build a modifyable instance of this type.
boost::intrusive_ptr< DataSourceBase > shared_ptr
Use this type to store a pointer to a DataSourceBase.
An Attribute has a name and contains data which can be set and get.
Definition: Attribute.hpp:56
Contains TaskContext, Activity, OperationCaller, Operation, Property, InputPort, OutputPort, Attribute.
Definition: Activity.cpp:52
Old-style SequenceTypeInfo which offers type info for sequences which can be sent over flow ports...
base::AttributeBase * buildVariable(std::string name, int size) const
Build a modifyable instance of this type.