tuple_is_number

Herror ::tuple_is_number ( const HTuple &T, long *IsNumber ) Herror ::tuple_is_number ( const HTuple &T, HTuple *IsNumber )

Check a tuple (of strings) whether it represents numbers.

::tuple_is_number checks each element of the input tuple T whether it represents a number. If the element is a number (real or integer), 1 is returned for that element. If the element is a string, it is checked whether the string represents a number. If so, 1 is returned, otherwise 0.

Parameters

`T` (input_control)	number(-array) `->` HTuple.double / long / char *
Input tuple.

`IsNumber` (output_control)	integer(-array) `->` (HTuple.) long *
Tuple with boolean numbers.

See also

::tuple_number

Module

Operators not requiring licensing