NAME

       erl_internal - Internal Erlang Definitions

DESCRIPTION

       This  module  defines  Erlang  BIFs,  guard  tests  and  operators.  This  module  is only of interest to
       programmers who manipulate Erlang code.

EXPORTS

       bif(Name, Arity) -> boolean()

              Types:

                 Name = atom()
                 Arity = arity()

              Returns true if Name/Arity is an Erlang BIF which is automatically  recognized  by  the  compiler,
              otherwise false.

       guard_bif(Name, Arity) -> boolean()

              Types:

                 Name = atom()
                 Arity = arity()

              Returns true if Name/Arity is an Erlang BIF which is allowed in guards, otherwise false.

       type_test(Name, Arity) -> boolean()

              Types:

                 Name = atom()
                 Arity = arity()

              Returns true if Name/Arity is a valid Erlang type test, otherwise false.

       arith_op(OpName, Arity) -> boolean()

              Types:

                 OpName = atom()
                 Arity = arity()

              Returns true if OpName/Arity is an arithmetic operator, otherwise false.

       bool_op(OpName, Arity) -> boolean()

              Types:

                 OpName = atom()
                 Arity = arity()

              Returns true if OpName/Arity is a Boolean operator, otherwise false.

       comp_op(OpName, Arity) -> boolean()

              Types:

                 OpName = atom()
                 Arity = arity()

              Returns true if OpName/Arity is a comparison operator, otherwise false.

       list_op(OpName, Arity) -> boolean()

              Types:

                 OpName = atom()
                 Arity = arity()

              Returns true if OpName/Arity is a list operator, otherwise false.

       send_op(OpName, Arity) -> boolean()

              Types:

                 OpName = atom()
                 Arity = arity()

              Returns true if OpName/Arity is a send operator, otherwise false.

       op_type(OpName, Arity) -> Type

              Types:

                 OpName = atom()
                 Arity = arity()
                 Type = arith | bool | comp | list | send

              Returns the Type of operator that OpName/Arity belongs to, or generates a function_clause error if
              it is not an operator at all.

Ericsson AB                                        stdlib 2.8                                 erl_internal(3erl)