1.34.0[−][src]Trait libzmq::prelude::TryFrom
Simple and safe type conversions that may fail in a controlled
way under some circumstances. It is the reciprocal of TryInto
.
This is useful when you are doing a type conversion that may
trivially succeed but may also need special handling.
For example, there is no way to convert an i64
into an i32
using the From
trait, because an i64
may contain a value
that an i32
cannot represent and so the conversion would lose data.
This might be handled by truncating the i64
to an i32
(essentially
giving the i64
's value modulo i32::MAX
) or by simply returning
i32::MAX
, or by some other method. The From
trait is intended
for perfect conversions, so the TryFrom
trait informs the
programmer when a type conversion could go bad and lets them
decide how to handle it.
Generic Implementations
TryFrom<T> for U
impliesTryInto
<U> for T
try_from
is reflexive, which means thatTryFrom<T> for T
is implemented and cannot fail -- the associatedError
type for callingT::try_from()
on a value of typeT
isInfallible
. When the!
type is stabilizedInfallible
and!
will be equivalent.
TryFrom<T>
can be implemented as follows:
use std::convert::TryFrom; struct GreaterThanZero(i32); impl TryFrom<i32> for GreaterThanZero { type Error = &'static str; fn try_from(value: i32) -> Result<Self, Self::Error> { if value <= 0 { Err("GreaterThanZero only accepts value superior than zero!") } else { Ok(GreaterThanZero(value)) } } }
Examples
As described, i32
implements TryFrom<
i64
>
:
use std::convert::TryFrom; let big_number = 1_000_000_000_000i64; // Silently truncates `big_number`, requires detecting // and handling the truncation after the fact. let smaller_number = big_number as i32; assert_eq!(smaller_number, -727379968); // Returns an error because `big_number` is too big to // fit in an `i32`. let try_smaller_number = i32::try_from(big_number); assert!(try_smaller_number.is_err()); // Returns `Ok(3)`. let try_successful_smaller_number = i32::try_from(3); assert!(try_successful_smaller_number.is_ok());
Associated Types
type Error
The type returned in the event of a conversion error.
Required methods
Loading content...Implementations on Foreign Types
impl TryFrom<i64> for i32
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<i32, <i32 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for u16
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<u16, <u16 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for u64
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<u64, <u64 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for u16
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<u16, <u16 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for u32
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<u32, <u32 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for i16
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type Error = TryFromIntError
fn try_from(u: u32) -> Result<i16, <i16 as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for i8
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type Error = TryFromIntError
fn try_from(u: usize) -> Result<i8, <i8 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for isize
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type Error = TryFromIntError
fn try_from(value: u32) -> Result<isize, <isize as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for i16
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<i16, <i16 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for u8
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<u8, <u8 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for i16
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<i16, <i16 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u16> for i16
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type Error = TryFromIntError
fn try_from(u: u16) -> Result<i16, <i16 as TryFrom<u16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for u128
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<u128, <u128 as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for u32
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<u32, <u32 as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for u8
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<u8, <u8 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for u32
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type Error = TryFromIntError
fn try_from(u: usize) -> Result<u32, <u32 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for u8
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<u8, <u8 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl<'a, const N: usize, T> TryFrom<&'a [T]> for &'a [T; N] where
[T; N]: LengthAtMost32,
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[T; N]: LengthAtMost32,
type Error = TryFromSliceError
fn try_from(slice: &[T]) -> Result<&[T; N], TryFromSliceError>
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impl TryFrom<i16> for i8
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<i8, <i8 as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for u16
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type Error = TryFromIntError
fn try_from(u: i8) -> Result<u16, <u16 as TryFrom<i8>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for u16
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type Error = TryFromIntError
fn try_from(u: u32) -> Result<u16, <u16 as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for i8
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<i8, <i8 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for u16
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<u16, <u16 as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for usize
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type Error = TryFromIntError
fn try_from(value: u64) -> Result<usize, <usize as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for i64
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type Error = TryFromIntError
fn try_from(value: isize) -> Result<i64, <i64 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for i8
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<i8, <i8 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for usize
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<usize, <usize as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u16> for isize
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type Error = TryFromIntError
fn try_from(value: u16) -> Result<isize, <isize as TryFrom<u16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for i16
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<i16, <i16 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for u32
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<u32, <u32 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for u128
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<u128, <u128 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for u8
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type Error = TryFromIntError
fn try_from(u: i8) -> Result<u8, <u8 as TryFrom<i8>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for u32
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<u32, <u32 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for i64
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<i64, <i64 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for i8
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<i8, <i8 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for i32
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<i32, <i32 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for u16
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<u16, <u16 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for u64
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<u64, <u64 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for i64
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<i64, <i64 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for u64
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<u64, <u64 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for i16
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<i16, <i16 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for u128
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<u128, <u128 as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for isize
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type Error = TryFromIntError
fn try_from(value: i64) -> Result<isize, <isize as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for usize
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<usize, <usize as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for i8
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type Error = TryFromIntError
fn try_from(u: u32) -> Result<i8, <i8 as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for u64
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type Error = TryFromIntError
fn try_from(value: usize) -> Result<u64, <u64 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for u8
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<u8, <u8 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for usize
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type Error = TryFromIntError
fn try_from(u: i64) -> Result<usize, <usize as TryFrom<i64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for i8
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<i8, <i8 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for u16
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<u16, <u16 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for u64
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<u64, <u64 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for u64
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<u64, <u64 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u16> for u8
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type Error = TryFromIntError
fn try_from(u: u16) -> Result<u8, <u8 as TryFrom<u16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for i64
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<i64, <i64 as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for isize
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type Error = TryFromIntError
fn try_from(value: i32) -> Result<isize, <isize as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for u64
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type Error = TryFromIntError
fn try_from(u: i8) -> Result<u64, <u64 as TryFrom<i8>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for usize
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type Error = TryFromIntError
fn try_from(value: u32) -> Result<usize, <usize as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for i64
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type Error = TryFromIntError
fn try_from(u: usize) -> Result<i64, <i64 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for u32
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type Error = TryFromIntError
fn try_from(u: i32) -> Result<u32, <u32 as TryFrom<i32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for u8
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type Error = TryFromIntError
fn try_from(u: u32) -> Result<u8, <u8 as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for isize
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<isize, <isize as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for u64
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<u64, <u64 as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for i16
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type Error = TryFromIntError
fn try_from(u: usize) -> Result<i16, <i16 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for i128
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type Error = TryFromIntError
fn try_from(value: usize) -> Result<i128, <i128 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for u32
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<u32, <u32 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for u128
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type Error = TryFromIntError
fn try_from(u: i128) -> Result<u128, <u128 as TryFrom<i128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for isize
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type Error = TryFromIntError
fn try_from(u: u128) -> Result<isize, <isize as TryFrom<u128>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for usize
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type Error = TryFromIntError
fn try_from(u: i16) -> Result<usize, <usize as TryFrom<i16>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for i32
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type Error = TryFromIntError
fn try_from(u: u32) -> Result<i32, <i32 as TryFrom<u32>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u8> for i8
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type Error = TryFromIntError
fn try_from(u: u8) -> Result<i8, <i8 as TryFrom<u8>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for i32
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<i32, <i32 as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for i16
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type Error = TryFromIntError
fn try_from(u: isize) -> Result<i16, <i16 as TryFrom<isize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl<'_, const N: usize, T> TryFrom<&'_ [T]> for [T; N] where
T: Copy,
[T; N]: LengthAtMost32,
[src]
T: Copy,
[T; N]: LengthAtMost32,
type Error = TryFromSliceError
fn try_from(slice: &[T]) -> Result<[T; N], TryFromSliceError>
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impl TryFrom<usize> for u128
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type Error = TryFromIntError
fn try_from(value: usize) -> Result<u128, <u128 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for isize
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type Error = TryFromIntError
fn try_from(u: u64) -> Result<isize, <isize as TryFrom<u64>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u32> for char
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type Error = CharTryFromError
fn try_from(i: u32) -> Result<char, <char as TryFrom<u32>>::Error>
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impl TryFrom<usize> for u16
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type Error = TryFromIntError
fn try_from(u: usize) -> Result<u16, <u16 as TryFrom<usize>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for u32
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type Error = TryFromIntError
fn try_from(u: i8) -> Result<u32, <u32 as TryFrom<i8>>::Error>
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Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for u128
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type Error = TryFromIntError
fn try_from(u: i8) -> Result<u128, <u128 as TryFrom<i8>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for i16
[src]
type Error = TryFromIntError
fn try_from(u: i128) -> Result<i16, <i16 as TryFrom<i128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for u8
[src]
type Error = TryFromIntError
fn try_from(u: isize) -> Result<u8, <u8 as TryFrom<isize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for i32
[src]
type Error = TryFromIntError
fn try_from(u: usize) -> Result<i32, <i32 as TryFrom<usize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for i32
[src]
type Error = TryFromIntError
fn try_from(u: i128) -> Result<i32, <i32 as TryFrom<i128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for i32
[src]
type Error = TryFromIntError
fn try_from(u: u128) -> Result<i32, <i32 as TryFrom<u128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i8> for usize
[src]
type Error = TryFromIntError
fn try_from(u: i8) -> Result<usize, <usize as TryFrom<i8>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for usize
[src]
type Error = TryFromIntError
fn try_from(u: u128) -> Result<usize, <usize as TryFrom<u128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl<'a, const N: usize, T> TryFrom<&'a mut [T]> for &'a mut [T; N] where
[T; N]: LengthAtMost32,
[src]
[T; N]: LengthAtMost32,
type Error = TryFromSliceError
fn try_from(slice: &mut [T]) -> Result<&mut [T; N], TryFromSliceError>
[src]
impl TryFrom<isize> for u16
[src]
type Error = TryFromIntError
fn try_from(u: isize) -> Result<u16, <u16 as TryFrom<isize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u16> for i8
[src]
type Error = TryFromIntError
fn try_from(u: u16) -> Result<i8, <i8 as TryFrom<u16>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for i8
[src]
type Error = TryFromIntError
fn try_from(u: i32) -> Result<i8, <i8 as TryFrom<i32>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for u32
[src]
type Error = TryFromIntError
fn try_from(u: i64) -> Result<u32, <u32 as TryFrom<i64>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i16> for u8
[src]
type Error = TryFromIntError
fn try_from(u: i16) -> Result<u8, <u8 as TryFrom<i16>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u128> for i128
[src]
type Error = TryFromIntError
fn try_from(u: u128) -> Result<i128, <i128 as TryFrom<u128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for u128
[src]
type Error = TryFromIntError
fn try_from(u: isize) -> Result<u128, <u128 as TryFrom<isize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for u8
[src]
type Error = TryFromIntError
fn try_from(u: usize) -> Result<u8, <u8 as TryFrom<usize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<u64> for u16
[src]
type Error = TryFromIntError
fn try_from(u: u64) -> Result<u16, <u16 as TryFrom<u64>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i64> for i8
[src]
type Error = TryFromIntError
fn try_from(u: i64) -> Result<i8, <i8 as TryFrom<i64>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<isize> for i128
[src]
type Error = TryFromIntError
fn try_from(value: isize) -> Result<i128, <i128 as TryFrom<isize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i128> for u8
[src]
type Error = TryFromIntError
fn try_from(u: i128) -> Result<u8, <u8 as TryFrom<i128>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<i32> for usize
[src]
type Error = TryFromIntError
fn try_from(u: i32) -> Result<usize, <usize as TryFrom<i32>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl TryFrom<usize> for isize
[src]
type Error = TryFromIntError
fn try_from(u: usize) -> Result<isize, <isize as TryFrom<usize>>::Error>
[src]
Try to create the target number type from a source number type. This returns an error if the source value is outside of the range of the target type.
impl<const N: usize, T> TryFrom<Rc<[T]>> for Rc<[T; N]> where
[T; N]: LengthAtMost32,
[src]
[T; N]: LengthAtMost32,
type Error = Rc<[T]>
fn try_from(
boxed_slice: Rc<[T]>
) -> Result<Rc<[T; N]>, <Rc<[T; N]> as TryFrom<Rc<[T]>>>::Error>
[src]
boxed_slice: Rc<[T]>
) -> Result<Rc<[T; N]>, <Rc<[T; N]> as TryFrom<Rc<[T]>>>::Error>
impl<const N: usize, T> TryFrom<Box<[T]>> for Box<[T; N]> where
[T; N]: LengthAtMost32,
[src]
[T; N]: LengthAtMost32,
type Error = Box<[T]>
fn try_from(
boxed_slice: Box<[T]>
) -> Result<Box<[T; N]>, <Box<[T; N]> as TryFrom<Box<[T]>>>::Error>
[src]
boxed_slice: Box<[T]>
) -> Result<Box<[T; N]>, <Box<[T; N]> as TryFrom<Box<[T]>>>::Error>
impl<const N: usize, T> TryFrom<Arc<[T]>> for Arc<[T; N]> where
[T; N]: LengthAtMost32,
[src]
[T; N]: LengthAtMost32,
type Error = Arc<[T]>
fn try_from(
boxed_slice: Arc<[T]>
) -> Result<Arc<[T; N]>, <Arc<[T; N]> as TryFrom<Arc<[T]>>>::Error>
[src]
boxed_slice: Arc<[T]>
) -> Result<Arc<[T; N]>, <Arc<[T; N]> as TryFrom<Arc<[T]>>>::Error>
Implementors
impl TryFrom<i64> for StatusCode
[src]
impl TryFrom<String> for Interface
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for Port
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for SrcAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for Hostname
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for SocketAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for CurvePublicKey
[src]
type Error = CurveError
fn try_from(text: String) -> Result<Self, CurveError>
[src]
impl TryFrom<String> for CurveSecretKey
[src]
type Error = CurveError
fn try_from(text: String) -> Result<Self, CurveError>
[src]
impl TryFrom<String> for EpgmAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for Group
[src]
impl TryFrom<String> for InprocAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for PgmAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for TcpAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl TryFrom<String> for UdpAddr
[src]
type Error = AddrParseError
fn try_from(s: String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for Interface
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for Port
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for SrcAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for Hostname
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for SocketAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for CurvePublicKey
[src]
type Error = CurveError
fn try_from(text: &'a str) -> Result<Self, CurveError>
[src]
impl<'a> TryFrom<&'a str> for CurveSecretKey
[src]
type Error = CurveError
fn try_from(text: &'a str) -> Result<Self, CurveError>
[src]
impl<'a> TryFrom<&'a str> for EpgmAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for Group
[src]
impl<'a> TryFrom<&'a str> for InprocAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for PgmAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for TcpAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a str> for UdpAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a str) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for Interface
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for Port
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for SrcAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for Hostname
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for SocketAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for CurvePublicKey
[src]
type Error = CurveError
fn try_from(text: &'a String) -> Result<Self, CurveError>
[src]
impl<'a> TryFrom<&'a String> for CurveSecretKey
[src]
type Error = CurveError
fn try_from(text: &'a String) -> Result<Self, CurveError>
[src]
impl<'a> TryFrom<&'a String> for EpgmAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for Group
[src]
impl<'a> TryFrom<&'a String> for InprocAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for PgmAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for TcpAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a String> for UdpAddr
[src]
type Error = AddrParseError
fn try_from(s: &'a String) -> Result<Self, AddrParseError>
[src]
impl<'a> TryFrom<&'a [u8]> for StatusCode
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,