Method reserve

crates/core/src/alloc/vec.rs:120–128

Same as [`std::vec::Vec::reserve`] but returns an error on allocation failure.

(&mut self, additional: usize)

    /// Same as [`std::vec::Vec::reserve`] but returns an error on allocation
    /// failure.
    pub fn reserve(&mut self, additional: usize) -> Result<(), OutOfMemory> {
        self.inner.try_reserve(additional).map_err(|_| {
            OutOfMemory::new(
                self.len()
                    .saturating_add(additional)
                    .saturating_mul(mem::size_of::<T>()),
            )
        })
    }

    /// Same as [`std::vec::Vec::reserve_exact`] but returns an error on allocation
    /// failure.