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erl_internal(3erl) Erlang Module Definition erl_internal(3erl)

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.
stdlib 1.18.1 Ericsson AB