Request a flush on the next emit, optionally emitting now.

Synopsis

Declared in <bslstl_syncbuf.h>

int
sync() override;

Description

Request the wrapped streambuf flush on the next emit call, then call emit if the "emit‐on‐sync" flag is true. Return 0 on success and ‐1 if the emit call has failed.

Return Value

0 on success, or ‐1 if emit failed

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