Enum platforms::target::Env

#[non_exhaustive]pub enum Env {
    GNU,
    MSVC,
    Musl,
    SGX,
    uClibc,
    Unknown,
}

target_env: target enviroment that disambiguates the target platform by ABI / libc. This value is closely related to the fourth element of the platform target triple, though it is not identical. For example, embedded ABIs such as gnueabihf will simply define target_env as "gnu" (i.e. target::Env::GNU)

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

GNU

gnu: The GNU C Library (glibc)

MSVC

msvc: Microsoft Visual C(++)

Musl

musl: Clean, efficient, standards-conformant libc implementation.

SGX

sgx: Intel Software Guard Extensions (SGX) Enclave

uClibc

uclibc: C library for developing embedded Linux systems

Unknown

Unknown target environment

Implementations

impl Env

pub fn as_str(self) -> &'static str

String representing this environment which matches #[cfg(target_env)]

Trait Implementations

impl Clone for Env

fn clone(&self) -> Env

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Env

impl Debug for Env

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Env

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Env

impl FromStr for Env

type Err = Error

The associated error which can be returned from parsing.

fn from_str(env_name: &str) -> Result<Self, Self::Err>

Create a new Env from the given string

impl Hash for Env

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for Env

fn cmp(&self, other: &Env) -> Ordering

This method returns an Ordering between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<Env> for Env

fn eq(&self, other: &Env) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Env> for Env

fn partial_cmp(&self, other: &Env) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for Env

impl StructuralPartialEq for Env