A NumberTag provides information about important implementations details of numbers. For instance, it includes
information about whether we can expect arithmetic to overflow or produce invalid values, the bounds of the number if
they exist, whether it is an approximate or exact number type, etc.
- Companion
- object
Value members
Abstract methods
Returns the largest finite value that A can represent, if one exists. For instance, the largest finite value
representable by Double is 1.7976931348623157E308. On the other hand, BigInt has no largest value.
Returns the largest finite value that A can represent, if one exists. For instance, the largest finite value
representable by Double is 1.7976931348623157E308. On the other hand, BigInt has no largest value.
Returns the smallest finite value that A can represent, if one exists. For instance, the smallest finite value
representable by Double is -1.7976931348623157E308. On the other hand, BigInt has no smallest value.
Returns the smallest finite value that A can represent, if one exists. For instance, the smallest finite value
representable by Double is -1.7976931348623157E308. On the other hand, BigInt has no smallest value.
If A has values that represent an undefined or invalid value, then a repsentitive value may be used here.
Otherwise this returned None to indicate that all values in A are valid numbers in the extended real number
line.
If A has values that represent an undefined or invalid value, then a repsentitive value may be used here.
Otherwise this returned None to indicate that all values in A are valid numbers in the extended real number
line.
If A has a value that represents a negative infinity, then it is returned here, otherwise a value of None
indicates that negative infinity cannot be represented in A.
If A has a value that represents a negative infinity, then it is returned here, otherwise a value of None
indicates that negative infinity cannot be represented in A.
If A has a value that represents a positive infinity, then it is returned here, otherwise a value of None
indicates that positive infinity cannot be represented in A.
If A has a value that represents a positive infinity, then it is returned here, otherwise a value of None
indicates that positive infinity cannot be represented in A.
If A has a value that represents the real value 0, then it is returned here. Otherwise None is returned.
If A has a value that represents the real value 0, then it is returned here. Otherwise None is returned.
Returns true if a is an infinite value (either positive or negative) and false otherwise.
Returns true if a is an infinite value (either positive or negative) and false otherwise.
Returns true if a is an invalid number. Note that positive and negative infinities are valid numbers.
Returns true if a is an invalid number. Note that positive and negative infinities are valid numbers.
Returns true if A can represent both positive and negative values.
Returns true if A can represent both positive and negative values.
Returns true if this value can overflow as a result of arithmetic operations. Types that overflow include Int and
Long.
Returns true if this value can overflow as a result of arithmetic operations. Types that overflow include Int and
Long.
Concrete methods
Returns true if all values representable by A are finite and live on the real number line.
Returns true if all values representable by A are finite and live on the real number line.
Returns true if this type can represent arbitrarily large or small values.
Returns true if this type can represent arbitrarily large or small values.