Generic Function

Summary

Returns the column number where the next character will be written.

Package

stream

Signature

stream-line-column stream => column

Arguments

stream

A stream.

Values

column

An integer.

Description

The generic function stream-line-column returns the column number where the next character will be written from stream, or nil if this is not meaningful for the stream. This function is used in the implementation of print and the format ~t directive. A method for this function must be defined for every character output stream class that is defined, although at its simplest it may be defined to always return nil.

See also

fundamental-character-output-stream
stream-start-line-p