Enum ChecksumMode 

pub enum ChecksumMode {
    Required,
    Optional,
}

Defines how the parser should handle NMEA message checksums.

NMEA 0183 messages can include an optional checksum in the format *CC where CC is a two-digit hexadecimal value representing the XOR of all bytes in the message content (excluding the ‘$’ prefix and ‘*’ delimiter).

Variants

Required

Checksum is required and must be present.

The parser will fail if no *CC checksum is found at the end of the message. If a checksum is present, it will be validated against the calculated checksum.

Use this mode for strict NMEA 0183 compliance or when data integrity is critical.

Optional

Checksum is optional but will be validated if present.

The parser will accept messages both with and without checksums:

• If no checksum is present (*CC missing), parsing continues normally
• If a checksum is present, it must be valid or parsing will fail

Use this mode when working with mixed message sources or legacy equipment that may not always include checksums.

Trait Implementations

impl Clone for ChecksumMode

fn clone(&self) -> ChecksumMode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChecksumMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ChecksumMode

fn default() -> ChecksumMode

Returns the “default value” for a type.

impl PartialEq for ChecksumMode

fn eq(&self, other: &ChecksumMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ChecksumMode

impl StructuralPartialEq for ChecksumMode