tupleSize

Return the number of elements of a tuple, so, the size of a tuple.

Prototype :

fun [u0] I

u0 : a tuple. If this argument is not a tuple, the return value should not be considered.

Return : I the size or nil if error

Error :

EOK if no error.
EARGNIL if the argument is nil.

See also :

Example :

Note

The first element has always the index 0.