pub trait ToPrimitive {
Show 14 methods
// Required methods
fn to_i64(&self) -> Option<i64>;
fn to_u64(&self) -> Option<u64>;
// Provided methods
fn to_isize(&self) -> Option<isize> { ... }
fn to_i8(&self) -> Option<i8> { ... }
fn to_i16(&self) -> Option<i16> { ... }
fn to_i32(&self) -> Option<i32> { ... }
fn to_i128(&self) -> Option<i128> { ... }
fn to_usize(&self) -> Option<usize> { ... }
fn to_u8(&self) -> Option<u8> { ... }
fn to_u16(&self) -> Option<u16> { ... }
fn to_u32(&self) -> Option<u32> { ... }
fn to_u128(&self) -> Option<u128> { ... }
fn to_f32(&self) -> Option<f32> { ... }
fn to_f64(&self) -> Option<f64> { ... }
}Expand description
A generic trait for converting a value to a number.
Required Methods§
Provided Methods§
Sourcefn to_isize(&self) -> Option<isize>
fn to_isize(&self) -> Option<isize>
Converts the value of self to an isize. If the value cannot be
represented by an isize, then None is returned.
Sourcefn to_i8(&self) -> Option<i8>
fn to_i8(&self) -> Option<i8>
Converts the value of self to an i8. If the value cannot be
represented by an i8, then None is returned.
Sourcefn to_i16(&self) -> Option<i16>
fn to_i16(&self) -> Option<i16>
Converts the value of self to an i16. If the value cannot be
represented by an i16, then None is returned.
Sourcefn to_i32(&self) -> Option<i32>
fn to_i32(&self) -> Option<i32>
Converts the value of self to an i32. If the value cannot be
represented by an i32, then None is returned.
Sourcefn to_i128(&self) -> Option<i128>
fn to_i128(&self) -> Option<i128>
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.
This method is only available with feature i128 enabled on Rust >= 1.26.
The default implementation converts through to_i64(). Types implementing
this trait should override this method if they can represent a greater range.
Sourcefn to_usize(&self) -> Option<usize>
fn to_usize(&self) -> Option<usize>
Converts the value of self to a usize. If the value cannot be
represented by a usize, then None is returned.
Sourcefn to_u8(&self) -> Option<u8>
fn to_u8(&self) -> Option<u8>
Converts the value of self to a u8. If the value cannot be
represented by a u8, then None is returned.
Sourcefn to_u16(&self) -> Option<u16>
fn to_u16(&self) -> Option<u16>
Converts the value of self to a u16. If the value cannot be
represented by a u16, then None is returned.
Sourcefn to_u32(&self) -> Option<u32>
fn to_u32(&self) -> Option<u32>
Converts the value of self to a u32. If the value cannot be
represented by a u32, then None is returned.
Sourcefn to_u128(&self) -> Option<u128>
fn to_u128(&self) -> Option<u128>
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.
This method is only available with feature i128 enabled on Rust >= 1.26.
The default implementation converts through to_u64(). Types implementing
this trait should override this method if they can represent a greater range.