Data Type Features

INTEGER

Value specification

Y

MyType ::= INTEGER(1|2|3|4)

INTEGER

Value specification with names

Y

MyType ::= INTEGER {a(0), b(1), c(2)}

ENUMERATED

Enumeration of specified values

Y

MyType ::= ENUMERATED {a,b,c(3),d}

ENUMERATED

Hybrid use of extension and enumeration of specified values

Y

MyType ::= ENUMERATED {a,b,...,c(10)}

REAL

Binary encoding

Y

RealBase2 ::= REAL(WITH_COMPONENTS{...,base(2)})

REAL

Decimal encoding

N

RealBase10 ::= REAL(WITH COMPONENTS{...,base(10)})

REAL

Special value – positive infinity

Y

RealVal RealBase2 ::= PLUS-INFINITY

REAL

Special value – negative infinity

Y

RealVal RealBase2 ::= MINUS-INFINITY

REAL

Special value – NAN

Y

RealVal RealBase2 ::= NOT-A-NUMBER

REAL

Special value – negative 0

Y

RealVal RealBase2 ::= -0.0

REAL

Triplet

N

RealVal RealBase2 ::= {114, -5, 14}

BIT STRING

Bit indication

N

Rights ::= BIT STRING{user-read(0), user-write(1), group-read(2), group-write(3), other-read(4), other-write(5)} group Rights ::= {group-read, group-write}

SEQUENCE

Optional field

Y

MyType ::= SEQUENCE {a INTEGER OPTIONAL, b BOOLEAN}

SEQUENCE

Default value

Y

MyType ::= SEQUENCE {a INTEGER DEFAULT, b BOOLEAN}

Only non-combination types are supported.