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.
A value can be represented by the target type when it lies within
the range of scalars supported by the target type.
For example, a negative integer cannot be represented by an unsigned
integer type, and an i64 with a very high magnitude might not be
convertible to an i32.
On the other hand, conversions with possible precision loss or truncation
are admitted, like an f32 with a decimal part to an integer type, or
even a large f64 saturating to f32 infinity.
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, then None is returned.
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, then None is returned.
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".