public static member function
<ios> <iostream>

std::ios_base::xalloc

static int xalloc();
Get new index for extensible array [static]
Returns a new index value to be used with member functions in the internal extensible array.

The internal extensible array is a general-purpose array of objects of type long (if accessed with member iword) or void* (if accessed with member pword).

This is a static member function.

Parameters

none

Return Value

A new index that can be used with either member iword or member pword.

Data races

Concurrently calling this function may introduce data races.

Exception safety

Strong guarantee: if an exception is thrown, there are no changes in any stream.

See also

ios_base::iword
Get integer element of extensible array (public member function )
ios_base::pword
Get pointer element of extensible array (public member function )

C++