Struct GmpConversionSpec 

pub struct GmpConversionSpec {

    pub sign: u8,
    pub plus: bool,
    pub space: bool,
    pub alt: bool,
    pub left: bool,
    pub group: bool,
    pub fill: u8,
    pub width: i64,
    pub prec: Option<i64>,
    pub type_chr: u8,
    pub type_doubled: bool,
    pub rnd_chr: u8,
    pub conv: u8,
}

A single parsed printf-style conversion specification, as GMP’s and MPFR’s formatted-output functions understand them: % [flags] [width] [.precision] [type] [rounding] conv.

The struct is purely syntactic: it records what was written, and each GmpFormatArg implementation applies its own library’s interpretation. In particular:

• sign is the last + or space flag written (or 0 for neither), which is what GMP’s own types use, while plus and space record whether each flag appeared at all, which is what the C conversions need (+ overrides space in C, regardless of order).
• prec is None when no precision was written, and Some(-1) for a . with no digits, which GMP reads as “all necessary digits” and C and MPFR read as 0.
• type_chr is the type or length-modifier character (Z, Q, R, l, h, and so on, or 0 for none), with type_doubled distinguishing hh and ll. As in GMP’s parser, a later type character overwrites an earlier one.
• rnd_chr is MPFR’s rounding character, only ever set directly after an R.

Fields

sign: u8

plus: bool

space: bool

alt: bool

left: bool

group: bool

fill: u8

width: i64

prec: Option<i64>

type_chr: u8

type_doubled: bool

rnd_chr: u8

conv: u8

Trait Implementations

impl Clone for GmpConversionSpec

fn clone(&self) -> GmpConversionSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GmpConversionSpec

impl Debug for GmpConversionSpec

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

Formats the value using the given formatter.

impl Eq for GmpConversionSpec

impl PartialEq for GmpConversionSpec

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GmpConversionSpec