C++ IOS Library - widen

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Description

It is used to find widen character and returns the transformation of c to its equivalent using the ctype::widen facet of the locale object currently imbued in the stream.

This function is designed for instantiations of basic_ios that use a different (wider) character type: see basic_ios::widen.

Declaration

Following is the declaration for ios::widen function.

char widen (char c) const;

Parameters

c − Character to be "widened".

Return Value

The wide equivalent of c.

Exceptions

Strong guarantee − if an exception is thrown, there are no changes in the stream.

Data races

Accesses the stream object.

Concurrent access to the same stream object may cause data races.