| 1 | /* \file toString.hpp
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| 2 | *
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| 3 | * contains template functions that allow for casting various types to strings.
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| 4 | *
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| 5 | * Created on: Nov 14, 2010
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| 6 | * Author: heber
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| 7 | */
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| 8 |
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| 9 | #ifndef TOSTRING_HPP_
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| 10 | #define TOSTRING_HPP_
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| 11 |
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| 12 | #include <iostream>
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| 13 | #include <string>
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| 14 | #include <sstream>
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| 15 |
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| 16 | #include <list>
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| 17 | #include <map>
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| 18 | #include <set>
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| 19 | #include <vector>
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| 20 |
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| 21 | /** Converter for any class to string.
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| 22 | * We use default conversion via stringstream as suggested by [Stroustrup].
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| 23 | * \param _&_object reference to object to convert to string.
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| 24 | * \return string converted \a _object
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| 25 | */
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| 26 | template <class T> std::string toString(T const &_object)
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| 27 | {
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| 28 | std::stringstream s;
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| 29 | s << _object;
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| 30 | return s.str();
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| 31 | }
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| 32 |
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| 33 | /** Converter for a string to any class
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| 34 | * We use default conversion via stringstream as suggested by [Stroustrup].
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| 35 | * \param _&_object reference to object to convert.
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| 36 | * \return converted \a _object of templated type
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| 37 | */
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| 38 | template <class T> struct ConvertTo {
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| 39 | T operator()(std::string _object) {
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| 40 | std::stringstream s;
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| 41 | T object;
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| 42 | s << _object;
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| 43 | s >> object;
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| 44 | return object;
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| 45 | }
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| 46 | };
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| 47 |
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| 48 |
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| 49 | /** Operator for output to std::ostream operator of an std::list of arbitrary
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| 50 | * type.
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| 51 | * @param ost output stream
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| 52 | * @param vector list of types to output
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| 53 | * @return ost output stream
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| 54 | */
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| 55 | template <class T> std::ostream & operator<<(std::ostream &ost, const std::list< T > &_vector)
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| 56 | {
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| 57 | ost << "( ";
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| 58 | for (typename std::list< T >::const_iterator iter = _vector.begin();
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| 59 | iter != _vector.end();
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| 60 | ++iter)
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| 61 | ost << *iter << "; ";
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| 62 | ost << ")";
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| 63 | return ost;
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| 64 | }
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| 65 |
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| 66 |
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| 67 | /** Operator for output to std::ostream operator of an std::map of arbitrary
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| 68 | * type.
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| 69 | * @param ost output stream
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| 70 | * @param vector map of types to output
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| 71 | * @return ost output stream
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| 72 | */
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| 73 | template <class T, class S> std::ostream & operator<<(std::ostream &ost, const std::map< T, S > &_vector)
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| 74 | {
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| 75 | ost << "{ ";
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| 76 | for (typename std::map< T, S >::const_iterator iter = _vector.begin();
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| 77 | iter != _vector.end();
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| 78 | ++iter)
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| 79 | ost << "(" << iter->first << ")=>(" << iter->second << "); ";
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| 80 | ost << "}";
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| 81 | return ost;
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| 82 | }
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| 83 |
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| 84 |
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| 85 | /** Operator for output to std::ostream operator of an std::multimap of arbitrary
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| 86 | * type.
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| 87 | * @param ost output stream
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| 88 | * @param multimap map of types to output
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| 89 | * @return ost output stream
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| 90 | */
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| 91 | template <class T, class S> std::ostream & operator<<(std::ostream &ost, const std::multimap< T, S > &_vector)
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| 92 | {
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| 93 | ost << "{ ";
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| 94 | for (typename std::multimap< T, S >::const_iterator iter = _vector.begin();
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| 95 | iter != _vector.end();
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| 96 | ++iter)
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| 97 | ost << "(" << iter->first << ")=>(" << iter->second << "); ";
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| 98 | ost << "}";
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| 99 | return ost;
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| 100 | }
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| 101 |
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| 102 |
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| 103 | /** Operator for output to std::ostream operator of an std::set of arbitrary
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| 104 | * type.
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| 105 | * @param ost output stream
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| 106 | * @param set list of types to output
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| 107 | * @return ost output stream
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| 108 | */
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| 109 | template <class T> std::ostream & operator<<(std::ostream &ost, const std::set< T > &_vector)
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| 110 | {
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| 111 | ost << "( ";
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| 112 | for (typename std::set< T >::const_iterator iter = _vector.begin();
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| 113 | iter != _vector.end();
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| 114 | ++iter)
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| 115 | ost << *iter << "; ";
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| 116 | ost << ")";
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| 117 | return ost;
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| 118 | }
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| 119 |
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| 120 |
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| 121 | /** Operator for output to std::ostream operator of an std::vector of arbitrary
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| 122 | * type.
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| 123 | * @param ost output stream
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| 124 | * @param vector vector of types to output
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| 125 | * @return ost output stream
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| 126 | */
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| 127 | template <class T> std::ostream & operator<<(std::ostream &ost, const std::vector< T > &_vector)
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| 128 | {
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| 129 | ost << "( ";
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| 130 | for (typename std::vector< T >::const_iterator iter = _vector.begin();
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| 131 | iter != _vector.end();
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| 132 | ++iter)
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| 133 | ost << *iter << "; ";
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| 134 | ost << ")";
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| 135 | return ost;
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| 136 | }
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| 137 |
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| 138 |
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| 139 | #endif /* TOSTRING_HPP_ */
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