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§

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fn to_i64(&self) -> Option<i64>

Converts the value of self to an i64. If the value cannot be represented by an i64, then None is returned.

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fn to_u64(&self) -> Option<u64>

Converts the value of self to a u64. If the value cannot be represented by a u64, then None is returned.

Provided Methods§

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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.

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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.

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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.

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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.

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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.

The default implementation converts through to_i64(). Types implementing this trait should override this method if they can represent a greater range.

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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.

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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.

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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.

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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.

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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.

The default implementation converts through to_u64(). Types implementing this trait should override this method if they can represent a greater range.

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fn to_f32(&self) -> Option<f32>

Converts the value of self to an f32. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f32.

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fn to_f64(&self) -> Option<f64>

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.

The default implementation tries to convert through to_i64(), and failing that through to_u64(). Types implementing this trait should override this method if they can represent a greater range.

Implementations on Foreign Types§

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impl ToPrimitive for f32

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for f64

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for i8

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for i16

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for i32

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for i64

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for i128

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for isize

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for u8

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for u16

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for u32

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for u64

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for u128

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for usize

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fn to_isize(&self) -> Option<isize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_usize(&self) -> Option<usize>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for BigInt

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl ToPrimitive for BigUint

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BInt<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BIntD8<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BIntD16<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BIntD32<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BUint<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BUintD8<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BUintD16<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

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impl<const N: usize> ToPrimitive for BUintD32<N>

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fn to_u8(&self) -> Option<u8>

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fn to_u16(&self) -> Option<u16>

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fn to_u32(&self) -> Option<u32>

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fn to_u64(&self) -> Option<u64>

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fn to_u128(&self) -> Option<u128>

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fn to_usize(&self) -> Option<usize>

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fn to_i8(&self) -> Option<i8>

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fn to_i16(&self) -> Option<i16>

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fn to_i32(&self) -> Option<i32>

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fn to_i64(&self) -> Option<i64>

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fn to_i128(&self) -> Option<i128>

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fn to_isize(&self) -> Option<isize>

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fn to_f32(&self) -> Option<f32>

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fn to_f64(&self) -> Option<f64>

Implementors§