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isastream (3)
  • isastream (3) ( Solaris man: Библиотечные вызовы )
  • >> isastream (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    isastream - test a file descriptor (STREAMS)
     
    

    SYNOPSIS

    #include <stropts.h>

    int isastream(int fildes);
     

    DESCRIPTION

    The isastream() function shall test whether fildes, an open file descriptor, is associated with a STREAMS-based file.  

    RETURN VALUE

    Upon successful completion, isastream() shall return 1 if fildes refers to a STREAMS-based file and 0 if not. Otherwise, isastream() shall return -1 and set errno to indicate the error.  

    ERRORS

    The isastream() function shall fail if:

    EBADF
    The fildes argument is not a valid open file descriptor.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    None.  

    RATIONALE

    None.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    The Base Definitions volume of IEEE Std 1003.1-2001, <stropts.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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