Errors and Warnings
Format the optional arguments under the control of the template string
TEMPLATE using the same rules as the `printf' family of functions
(*note Formatted Output::) and print the resulting message on t
Print the usage message for a function.
Print the message MSG, prefixed by the string `usage: ', and set
Octave's internal error state such that control will return to the top
level without evaluating any more commands.
Produce a beep from the speaker (or visual bell).
Query or set the internal variable that controls whether Octave will try
to ring the terminal bell before printing an error message.
Returns or sets the last error message.
Without any arguments, return the last error message.
Reissues a previous error as defined by ERR.
Return the current value of the system-dependent variable errno, set
its value to VAL and return the previous value, or return the named
error code given NAME as a character string, or -1 if NAME is n
Return a structure containing the system-dependent errno values.
Format the optional arguments under the control of the template string
TEMPLATE using the same rules as the `printf' family of functions
(*note Formatted Output::) and print the resulting message on t
Without any arguments, return the last warning message.
`Octave:array-to-scalar'
If the `Octave:array-to-scalar' warning is enabled, Octave will
warn when an implicit conversion from an array to a scalar value is
attempted.