Trait DoubleEndedIteratorSpec 

pub trait DoubleEndedIteratorSpec: Iterator + DoubleEndedIterator {
    // Required method
    spec fn peek_back(&self, index: int) -> Option<Self::Item>;
}

Required Methods

spec fn peek_back(&self, index: int) -> Option<Self::Item>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<VERUS_SPEC__A: DoubleEndedIterator + ?Sized> DoubleEndedIteratorSpec for VERUS_SPEC__A