Struct bigdecimal::BigDecimal [−][src]
pub struct BigDecimal { /* fields omitted */ }Expand description
A big decimal type.
Implementations
Creates and initializes a BigDecimal.
Creates and initializes a BigDecimal.
Examples
use bigdecimal::{BigDecimal, Zero}; assert_eq!(BigDecimal::parse_bytes(b"0", 10).unwrap(), BigDecimal::zero()); // assert_eq!(BigDecimal::parse_bytes(b"f", 16), BigDecimal::parse_bytes(b"16", 10));
Return a new BigDecimal object equivalent to self, with internal scaling set to the number specified. If the new_scale is lower than the current value (indicating a larger power of 10), digits will be dropped (as precision is lower)
Return a new BigDecimal object with precision set to new value
Return the sign of the BigDecimal as num::bigint::Sign.
Examples
extern crate num_bigint; extern crate bigdecimal; use std::str::FromStr; assert_eq!(bigdecimal::BigDecimal::from_str("-1").unwrap().sign(), num_bigint::Sign::Minus); assert_eq!(bigdecimal::BigDecimal::from_str("0").unwrap().sign(), num_bigint::Sign::NoSign); assert_eq!(bigdecimal::BigDecimal::from_str("1").unwrap().sign(), num_bigint::Sign::Plus);
Return the internal big integer value and an exponent. Note that a positive exponent indicates a negative power of 10.
Examples
extern crate num_bigint; extern crate bigdecimal; use std::str::FromStr; assert_eq!(bigdecimal::BigDecimal::from_str("1.1").unwrap().as_bigint_and_exponent(), (num_bigint::BigInt::from_str("11").unwrap(), 1));
Convert into the internal big integer value and an exponent. Note that a positive exponent indicates a negative power of 10.
Examples
extern crate num_bigint; extern crate bigdecimal; use std::str::FromStr; assert_eq!(bigdecimal::BigDecimal::from_str("1.1").unwrap().into_bigint_and_exponent(), (num_bigint::BigInt::from_str("11").unwrap(), 1));
Compute the absolute value of number
Divide this efficiently by 2
Note, if this is odd, the precision will increase by 1, regardless of the context’s limit.
Take the square root of the number
If the value is < 0, None is returned
Take the cube root of the number
Compute the reciprical of the number: x-1
Return true if this number has zero fractional part (is equal to an integer)
Evaluate the natural-exponential function ex
Trait Implementations
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the + operator.
Performs the + operation. Read more
Performs the += operation. Read more
Performs the += operation. Read more
Performs the += operation. Read more
Performs the += operation. Read more
Returns the “default value” for a type. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the / operator.
Performs the / operation. Read more
Converts an i64 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an u64 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts a f32 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts a f64 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an isize to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an i8 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an i16 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an i32 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an i128 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts a usize to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an u8 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an u16 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
Converts an u32 to return an optional value of this type. If the
value cannot be represented by this type, then None is returned. Read more
type Err = ParseBigDecimalError
type Err = ParseBigDecimalError
The associated error which can be returned from parsing.
Parses a string s to return a value of this type. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the * operator.
Performs the * operation. Read more
Performs the *= operation. Read more
Performs the *= operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the unary - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the unary - operation. Read more
Creates and initializes a BigDecimal.
Returns the multiplicative identity element of Self, 1. Read more
Complete ordering implementation for BigDecimal
Example
use std::str::FromStr; let a = bigdecimal::BigDecimal::from_str("-1").unwrap(); let b = bigdecimal::BigDecimal::from_str("1").unwrap(); assert!(a < b); assert!(b > a); let c = bigdecimal::BigDecimal::from_str("1").unwrap(); assert!(b >= c); assert!(c >= b); let d = bigdecimal::BigDecimal::from_str("10.0").unwrap(); assert!(d > c); let e = bigdecimal::BigDecimal::from_str(".5").unwrap(); assert!(e < c);
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the % operator.
Performs the % operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the % operator.
Performs the % operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the % operator.
Performs the % operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the % operator.
Performs the % operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
type Output = BigDecimal
type Output = BigDecimal
The resulting type after applying the - operator.
Performs the - operation. Read more
Performs the -= operation. Read more
Performs the -= operation. Read more
Performs the -= operation. Read more
Performs the -= operation. Read more
Method which takes an iterator and generates Self from the elements by
“summing up” the items. Read more
Method which takes an iterator and generates Self from the elements by
“summing up” the items. Read more
Converts the value of self to an i64. If the value cannot be
represented by an i64, then None is returned. Read more
Converts the value of self to a u64. If the value cannot be
represented by a u64, then None is returned. Read more
Converts the value of self to an f64. Overflows may map to positive
or negative inifinity, otherwise None is returned if the value cannot
be represented by an f64. Read more
Converts the value of self to an isize. If the value cannot be
represented by an isize, then None is returned. Read more
Converts the value of self to an i8. If the value cannot be
represented by an i8, then None is returned. Read more
Converts the value of self to an i16. If the value cannot be
represented by an i16, then None is returned. Read more
Converts the value of self to an i32. If the value cannot be
represented by an i32, then None is returned. Read more
Converts the value of self to an i128. If the value cannot be
represented by an i128 (i64 under the default implementation), then
None is returned. Read more
Converts the value of self to a usize. If the value cannot be
represented by a usize, then None is returned. Read more
Converts the value of self to a u8. If the value cannot be
represented by a u8, then None is returned. Read more
Converts the value of self to a u16. If the value cannot be
represented by a u16, then None is returned. Read more
Converts the value of self to a u32. If the value cannot be
represented by a u32, then None is returned. Read more
Converts the value of self to a u128. If the value cannot be
represented by a u128 (u64 under the default implementation), then
None is returned. Read more
Auto Trait Implementations
impl RefUnwindSafe for BigDecimal
impl Send for BigDecimal
impl Sync for BigDecimal
impl Unpin for BigDecimal
impl UnwindSafe for BigDecimal
Blanket Implementations
Mutably borrows from an owned value. Read more