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switch
This function searches in the list of 2-tuples the one which first element is equal to the specific _element_ (it performs a '==' test). It this tuple is found, the function returns the second element of the tuple, else it returns nil.Parameters
u1 switch ( [[u0 u1] r1] _list_ u0 _element_ )
Return value
_list_ list of 2-tuples _element_ element to search in the list
value associated to the _element_
Error :
- EOK if success.