class DelimT,
class CharT = char,
class Traits = std::char_traits<CharT>
>
std::experimental::ostream_joiner is a single-pass LegacyOutputIterator that writes successive objects into the std::basic_ostream object for which it was constructed, using operator<<, separated by a delimiter. The delimiter is written to the output stream between every two objects that are written. The write operation is performed when the iterator (whether dereferenced or not) is assigned to. Incrementing the ostream_joiner is a no-op.
In a typical implementation, the only data members of ostream_joiner are a pointer to the associated std::basic_ostream, the delimiter, and a bool member that indicates whether the next write is for the first element in the sequence.
Compared to std::ostream_iterator, ostream_joiner prints the delimiter sequence one fewer time, and is not templated on the type of the object to be printed.
char_type CharT traits_type Traits ostream_type std::basic_ostream<CharT, Traits> value_type void difference_type void pointer void reference void iterator_category std::output_iterator_tag [edit] Member functions [edit] Non-member functions creates an ostream_joiner object, deducing the template's type arguments from the function arguments
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