Struct ScriptNumber 

pub struct ScriptNumber {
    pub val: BigInt,
    pub after_genesis: bool,
}

A script number using big integer arithmetic for overflow safety.

Fields

val: BigInt

The numeric value stored as a big integer.

after_genesis: bool

Whether post-genesis rules are active (affects serialization clamping).

Implementations

impl ScriptNumber

pub fn new(val: i64, after_genesis: bool) -> Self

Create a new ScriptNumber from an i64 value.

pub fn from_bytes( bb: &[u8], script_num_len: usize, require_minimal: bool, after_genesis: bool, ) -> Result<Self, InterpreterError>

Parse a byte array into a ScriptNumber.

script_num_len is the max allowed byte length. require_minimal enforces minimal encoding. after_genesis enables post-genesis rules.

pub fn to_bytes(&self) -> Vec<u8>

Serialize the number to bytes in little-endian with sign bit.

pub fn add(&mut self, other: &ScriptNumber) -> &mut Self

Add another script number to this one and return self for chaining.

pub fn sub(&mut self, other: &ScriptNumber) -> &mut Self

Subtract another script number from this one and return self for chaining.

pub fn mul(&mut self, other: &ScriptNumber) -> &mut Self

Multiply this script number by another and return self for chaining.

pub fn div(&mut self, other: &ScriptNumber) -> &mut Self

Divide this script number by another (truncated toward zero) and return self for chaining.

pub fn modulo(&mut self, other: &ScriptNumber) -> &mut Self

Compute the truncated remainder of dividing by another and return self for chaining.

pub fn incr(&mut self) -> &mut Self

Increment this number by one and return self for chaining.

pub fn decr(&mut self) -> &mut Self

Decrement this number by one and return self for chaining.

pub fn neg(&mut self) -> &mut Self

Negate this number and return self for chaining.

pub fn abs(&mut self) -> &mut Self

Replace this number with its absolute value and return self for chaining.

pub fn set(&mut self, i: i64) -> &mut Self

Set this number to the given i64 value and return self for chaining.

pub fn is_zero(&self) -> bool

Return true if this number is zero.

pub fn less_than(&self, other: &ScriptNumber) -> bool

Return true if this number is less than other.

pub fn less_than_int(&self, i: i64) -> bool

Return true if this number is less than the given i64 value.

pub fn less_than_or_equal(&self, other: &ScriptNumber) -> bool

Return true if this number is less than or equal to other.

pub fn greater_than(&self, other: &ScriptNumber) -> bool

Return true if this number is greater than other.

pub fn greater_than_int(&self, i: i64) -> bool

Return true if this number is greater than the given i64 value.

pub fn greater_than_or_equal(&self, other: &ScriptNumber) -> bool

Return true if this number is greater than or equal to other.

pub fn equal(&self, other: &ScriptNumber) -> bool

Return true if this number is equal to other.

pub fn equal_int(&self, i: i64) -> bool

Return true if this number is equal to the given i64 value.

pub fn to_i32(&self) -> i32

Convert to i32, clamping to [i32::MIN, i32::MAX] on overflow.

pub fn to_i64(&self) -> i64

Convert to i64, clamping to [i64::MIN, i64::MAX] on overflow.

pub fn to_int(&self) -> i64

Convert to i64, returning 0 if the value does not fit.

Trait Implementations

impl Clone for ScriptNumber

fn clone(&self) -> ScriptNumber

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScriptNumber

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

Formats the value using the given formatter.