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42 lines
967 B
42 lines
967 B
// This file is under GNU General Public License 3.0
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// see LICENSE.txt
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#ifndef PEP_DATATYPES_STRING_VIEW_HH
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#define PEP_DATATYPES_STRING_VIEW_HH
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#if (__cplusplus >= 201606) // std::string_view is C++17.
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# include <string_view>
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namespace pEp
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{
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typedef std::string_view string_view;
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}
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#else // in C++11 / C++14 use boost::string_view instead.
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# include <boost/utility/string_view.hpp>
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namespace pEp
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{
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typedef boost::string_view string_view;
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// boost::string_view does not provide these operations, neither by boost nor by the stdlib. :-(
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inline
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std::string& operator+=(std::string& s, const string_view v)
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{
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s.append(v.data(), v.size());
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return s;
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}
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inline
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std::string operator+(std::string s, const string_view v)
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{
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return s += v;
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}
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// using ::std::operator+=;
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// using ::boost::operator+=;
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} // end of namespace pEp
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#endif // C++17 switch
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#endif // PEP_DATATYPES_CONFIG_HH
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