library/cpp/messagebus/www/concat_strings.h


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#pragma once 
 
#include <util/generic/string.h>
#include <util/stream/str.h> 
 
// ATTN: not equivalent to TString::Join - cat concat anything "outputable" to stream, not only TString convertable types.
 
inline void DoConcatStrings(TStringStream&) {
} 
 
template <class T, class... R>
inline void DoConcatStrings(TStringStream& ss, const T& t, const R&... r) {
    ss << t;
    DoConcatStrings(ss, r...);
} 
 
template <class... R>
inline TString ConcatStrings(const R&... r) {
    TStringStream ss; 
    DoConcatStrings(ss, r...);
    return ss.Str(); 
}