Struct der::TagNumber [−][src]
pub struct TagNumber(_);
Expand description
ASN.1 tag numbers (i.e. lower 5 bits of a Tag
).
From X.690 Section 8.1.2.2:
bits 5 to 1 shall encode the number of the tag as a binary integer with bit 5 as the most significant bit.
This library supports tag numbers ranging from zero to 30 (inclusive), which can be represented as a single identifier octet.
Section 8.1.2.4 describes how to support multi-byte tag numbers, which are
encoded by using a leading tag number of 31 (0b11111
). This library
deliberately does not support this: tag numbers greater than 30 are
disallowed.
Implementations
Create a new tag number (const-friendly).
Panics if the tag number is greater than 30
.
For a fallible conversion, use TryFrom
instead.
Create an APPLICATION
tag with this tag number.
Create a CONTEXT-SPECIFIC
tag with this tag number.
Trait Implementations
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl RefUnwindSafe for TagNumber
impl UnwindSafe for TagNumber
Blanket Implementations
Mutably borrows from an owned value. Read more