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Add operator for concatenating strings and string_views

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Eelco Dolstra 2022-05-09 14:28:27 +02:00
parent 24b3a500a7
commit abb80cfa4c
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1 changed files with 15 additions and 0 deletions
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15
src/libutil/util.hh
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@ -700,4 +700,19 @@ template<class... Ts> overloaded(Ts...) -> overloaded<Ts...>;
std::string showBytes(uint64_t bytes); std::string showBytes(uint64_t bytes);
/* Provide an addition operator between strings and string_views
inexplicably omitted from the standard library. */
inline std::string operator + (const std::string & s1, std::string_view s2)
{
auto s = s1;
s.append(s2);
return s;
}
inline std::string operator + (std::string && s, std::string_view s2)
{
s.append(s2);
return s;
}
} }