octal_clock library
Library containing all the Date/Time libraries for handling Octal Time
OctalDateTime is a semi-lazy proxy to dart.core.DateTime that converts the imperial units into octal units.
Due to javascript integer limitations, the two libraries use the millisecond as the common unit for the conversion between time systems. This leads to loss of accuracy due to rounding between the two systems.
Loss of Accuracy
When adding millisecond-level durations to OctalDateTime there can be off-by-one errors due to rounding during the conversion between time systems. The error shouldn't ever be more than +/= 1 millisecond per conversion.
When adding microsecond-level durations to OctalDateTime there is significant loss in accuracy due to the system rounding. Because there are almost two imperial microseconds per octal microsecond, and we do the conversion twice, the error is +/- 4 microseconds.
Classes
- OctalDateTime
- A class representing an DateTime in Octal format
- OctalDuration
- A class representing a duration in octal format
Constants
- MICROSECONDS_RATIO → const double
- Since milliseconds is our base unit, we need are microsecond ratio so that we can properly convert.
- MILLISECONDS_RATIO → const double
- The smallest unit where the two time systems synchronize is on the hour. We will calculate our conversion ratio using milliseconds as our base unit. This allows this library to work in js and dartvm without too much trouble.
Functions
-
dec2oct(
int decimal) → int -
Convert a
decimalnumber into its octal representation -
oct2dec(
int octal) → int -
Convert an
octalnumber into its decimal representation -
toDecimal(
int octal, String type, [int? max]) → int -
Convert an octal value into a decimal value
octalthe octal value to converttypea string describing this octal value, used for context in error messagesmaxthe maximum decimal value allowed