#!/usr/bin/env julia

# Jacek Poziemski 272389

"""
    findsmallest(start::Float64, finish::Float64)::Float64

Find the smallest Float64 larger than `start`
and smaller than `finish` that satisfies the
following inequality `x * (1/x) ≠ 1`.

# Arguments
- `start::Float64`: bottom limit for the wanted number
- `finish::Float64`: upper limit for the wanted number
"""
function findsmallest(start::Float64, finish::Float64)::Float64
    x::Float64 = nextfloat(Float64(start))
    res::Float64 = zero(Float64)

    while x < Float64(finish)
        res = x * (one(Float64) / x)
        if res != one(Float64)
            return x
        end
        x = nextfloat(x)
    end

    return missing
end

smallest::Float64 = findsmallest(1.0, 2.0)

if ismissing(smallest)
    println("smallest not found")
else
    println("smallest: $smallest")
end