Get the higher-or-equal temperature threshold.

  higherOrEqual() as pure
    -> left as Float, right as Float
    <- rtn as Float: left >=? right

defines module qa.operators.coalescegte.float

  defines function

    higherOrEqual() as pure
      ->
        left as Float
        right as Float
      <- rtn as Float: left >=? right

  defines program

    CoalesceGteFloatDemo()
      stdout <- Stdout()

      // === BOTH THRESHOLDS SET — returns the higher ===

      warningThreshold <- 35.0
      criticalThreshold <- 40.0
      upperLimit <- higherOrEqual(warningThreshold, criticalThreshold)
      stdout.println(`Upper threshold: ${upperLimit}`)

      // === EQUAL THRESHOLDS — returns the shared value ===

      limitA <- 37.5
      limitB <- 37.5
      sameLimit <- higherOrEqual(limitA, limitB)
      stdout.println(`Shared threshold: ${sameLimit}`)

      // === ONE THRESHOLD UNSET — returns the set one ===

      configuredLimit <- 42.0
      missingLimit <- Float()
      onlyLimit <- higherOrEqual(configuredLimit, missingLimit)
      stdout.println(`Configured threshold: ${onlyLimit}`)

      // === BOTH UNSET — result is unset ===

      absentFirst <- Float()
      absentSecond <- Float()
      bothMissing <- higherOrEqual(absentFirst, absentSecond)
      if bothMissing?
        stdout.println(`Threshold: ${bothMissing}`)
      else
        stdout.println("No temperature threshold configured")