Number of last comedilib error
#include <comedilib.h>
int comedi_errno(void);
When a Comedilib function fails, it usually returns -1 or NULL, depending on the return type. An internal library variable stores an error number, which can be retrieved by calling comedi_errno This error number can be converted to a human-readable form by the functions comedi_perror and comedi_strerror.
These functions are intended to mimic the behavior of the standard C library functions perror, strerror, and errno. In particular, Comedilib functions sometimes return an error that is generated inside the C library; the comedi error message in this case is the same as the C library.
The function comedi_errno returns an integer describing the most recent Comedilib error. This integer may be used as the errnum parameter for comedi_strerror.
David Schleef <[email protected]>
Author.
Frank Mori Hess <[email protected]>
Author.
Herman Bruyninckx <[email protected]>
Author.
Bernd Porr <[email protected]>
Author.
Ian Abbott <[email protected]>
Author.
\('Eric Piel <[email protected]>
Author.
Copyright © 1998-2003 David Schleef
Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
Copyright © 2002-2003 Herman Bruyninckx
Copyright © 2012 Bernd Porr
Copyright © 2012 Ian Abbott
Copyright © 2012 \('Eric Piel
This document is part of Comedilib. In the context of this document, the term "source code" as defined by the license is interpreted as the XML source.
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