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repr_discr

hir_ty::layout::adt

Function repr_discr 

Source 
fn repr_discr(
    dl: &TargetDataLayout,
    repr: &ReprOptions,
    min: i128,
    max: i128,
) -> Result<(Integer, bool), LayoutError>
Expand description

Finds the appropriate Integer type and signedness for the given signed discriminant range and #[repr] attribute. N.B.: u128 values above i128::MAX will be treated as signed, but that shouldn’t affect anything, other than maybe debuginfo.