Module sp_arithmetic::traits

Primitive traits for the runtime arithmetic.

Traits

AtLeast32Bit	A meta trait for arithmetic.
AtLeast32BitUnsigned	A meta trait for arithmetic. Same as AtLeast32Bit, but also bounded to be unsigned.
BaseArithmetic	A meta trait for arithmetic type operations, regardless of any limitation on size.
Bounded	Numbers which have upper and lower bounds
CheckedAdd	Performs addition that returns None instead of wrapping around on overflow.
CheckedDiv	Performs division that returns None instead of panicking on division by zero and instead of wrapping around on underflow and overflow.
CheckedMul	Performs multiplication that returns None instead of wrapping around on underflow or overflow.
CheckedNeg	Performs negation that returns None if the result can’t be represented.
CheckedShl	Performs a left shift that returns None on shifts larger than the type width.
CheckedShr	Performs a right shift that returns None on shifts larger than the type width.
CheckedSub	Performs subtraction that returns None instead of wrapping around on underflow.
IntegerSquareRoot	A trait implementing integer square root.
One	Defines a multiplicative identity element for Self.
SaturatedConversion	Convenience type to work around the highly unergonomic syntax needed to invoke the functions of overloaded generic traits, in this case SaturatedFrom and SaturatedInto.
Saturating	Saturating arithmetic operations, returning maximum or minimum values instead of overflowing.
Signed	Useful functions for signed numbers (i.e. numbers that can be negative).
UniqueSaturatedFrom	Just like From except that if the source value is too big to fit into the destination type then it’ll saturate the destination.
UniqueSaturatedInto	Just like Into except that if the source value is too big to fit into the destination type then it’ll saturate the destination.
Unsigned	A trait for values which cannot be negative
Zero	Defines an additive identity element for Self.

Functions

checked_pow

Raises a value to the power of exp, returning None if an overflow occurred.