# operator<<(std::thread::id)

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< cpp‎ | thread‎ | thread‎ | id

template< class CharT, class Traits > std::basic_ostream <CharT,Traits>& operator<<( std::basic_ostream <CharT,Traits>& ost, thread::id id ); |  | (since C++11)

Writes a textual representation of a thread identifier `id` to the output stream `ost`.

If two thread identifiers compare equal, they have identical textual representations; if they do not compare equal, their representations are distinct.

### Parameters

ost | - | output stream to insert the data into
id | - | thread identifier

### Return value

`ost`

### Exceptions

(none)

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