comedi_perror3
Print a comedilib error message
Usage
void comedi_perror(const
char
*
s);
Overview
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 with comedi_errno. This error number can be converted to a human-readable form by the functions comedi_perror or 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_perror prints an error message to the standard error output stream stderr. The error message consists of the argument string s, a colon, a space, a description of the error condition, and a new line.
History
- Debian 13 (Trixie): the text shown here
- Debian 12 (Bookworm)
- Debian 11 (Bullseye)
- Debian 10 (Buster)
- Debian 9 (Stretch)
- Debian 8 (Jessie)
- Debian 7 (Wheezy)
- Debian 6.0 (Squeeze) to Debian 5.0 (Lenny)
- Debian 4.0 (Etch) to Debian 3.1 (Sarge)
- Debian 3.0 (Woody)