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Version 1.9 Build 1556

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throw - Function

	Package	utility
	Module	misc

Send a SEVERE message, then fail

Synopsis
throw(..., origin, postcli)

include "note.g"

Synopsis
throw(..., origin='Glish')(..., origin, postcli)

Description
It is often useful to be able to both print an error message (to the logger if it is defined, otherwise to the terminal), and then return a fail. This function implements that idiom.

The priority is always set to SEVERE.

Arguments

...	in	components of the message
		Allowed:	string
origin	in	source of the message
		Allowed:	string
		Default:	'Glish'
postcli	in	Show message in CLI window too?
		Allowed:	Bool
		Default:	F

Returns
fail with the message in it

Example

myfunc := function(x) {
    if (!is_numeric(x))
        return throw('I can only deal with numeric values of x, not ', 
                      type_name(x), origin='myfunc');
}

See Also

1.

The AIPS++logger

2.

note