C++ IOS Library - Sync with Stdio

Description

It is used to toggle synchronization with cstdio streams [static].Toggles on or off synchronization of all the iostream standard streams with their corresponding standard C streams if it is called before the program performs its first input or output operation.

bool sync_with_stdio (bool sync = true);

Declaration

Following is the declaration for ios_base::sync_with_stdio function.

bool sync_with_stdio (bool sync = true);

Parameters

sync − Boolean parameter indicating whether synchronization is to be turned on or off: A value of true requests synchronization to be turned on, while a value of false requests it to be turned off.

Return Value

Returns the synchronization state before the call.

Exceptions

Basic guarantee − if an exception is thrown, the stream is in a valid state.

Data races

It may modify the stream object.