Struct GnucVersion 

pub struct GnucVersion {
    pub major: u32,
    pub minor: u32,
    pub patch: u32,
}

The GCC release the compiler claims to be, as __GNUC__, __GNUC_MINOR__ and __GNUC_PATCHLEVEL__.

Design: spec/04-driver-and-cli.md section 4.5, which makes this a knob rather than a constant and says to start conservative and raise it as the matrix in rucc-gnu fills in.

The default is the version Clang claimed for over a decade, which is the one value every real header set is known to cope with from a compiler that is not GCC. It is deliberately low. glibc gates most of what it hands a caller on __GNUC_PREREQ, so the claim decides which half of sys/cdefs.h we get, and claiming a version whose promises we have not kept means being handed syntax we cannot parse.

Fields

major: u32

__GNUC__.

minor: u32

__GNUC_MINOR__.

patch: u32

__GNUC_PATCHLEVEL__.

Trait Implementations

impl Clone for GnucVersion

fn clone(&self) -> GnucVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GnucVersion

impl Debug for GnucVersion

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

Formats the value using the given formatter.

impl Default for GnucVersion

fn default() -> GnucVersion

Returns the “default value” for a type.

impl Eq for GnucVersion

impl FromStr for GnucVersion

fn from_str(text: &str) -> Result<GnucVersion, String>

Reads -fgnuc-version=, which is 15, 15.1 or 15.1.0.

The short forms are not a convenience, they are what people write. A missing component is zero, the same way GCC treats a release with no patchlevel.

type Err = String

The associated error which can be returned from parsing.

impl Hash for GnucVersion

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for GnucVersion

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for GnucVersion

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for GnucVersion

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

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

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl StructuralPartialEq for GnucVersion