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overflow

In computer programming, an integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of digits – either higher than the maximum or lower than the minimum representable value.
The most common result of an overflow is that the least significant representable digits of the result are stored; the result is said to wrap around the maximum (i.e. modulo a power of the radix, usually two in modern computers, but sometimes ten or another radix).
An overflow condition may give results leading to unintended behavior. In particular, if the possibility has not been anticipated, overflow can compromise a program's reliability and security.
For some applications, such as timers and clocks, wrapping on overflow can be desirable. The C11 standard states that for unsigned integers modulo wrapping is the defined behavior and the term overflow never applies: "a computation involving unsigned operands can never overflow."On some processors like graphics processing units (GPUs) and digital signal processors (DSPs) which support saturation arithmetic, overflowed results would be "clamped", i.e. set to the minimum or the maximum value in the representable range, rather than wrapped around.

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  1. A

    Hot water in f+e overflow pipe constantly

    Hot water constantly dripping out overflow pipe. Changed mixer shower. Hot off cylinder via pump cold through mains with pev fitted. Pump fuse spurred to immersion socket. Customer thought it was constantly heating but still drips when off. Any ideas? Could water be backflowing from pev and up...
  2. A

    Belfast Sink Overflow

    Hi, Got a Shaws Belfast Sink (model so900010wh l) however I have no idea what connection to get for the overflow. Picture attached; kitchen fitter has already siliconed it in so not the best of angles. Any help greatly appreciated Thanks, Andy
  3. M

    Kitchen Sink Waste Overflow Connection

    Hi I was wondering if someone could please tell me how to connect the flex pipe from sink overflow drain in to waste trap below? It is the Cooke & Lewis Waste Kit ‘B’ If I can add pictures then I can show?
  4. R

    Flomasta Bottom Entry Fill Valve won't stop filling

    Hi all. I'm having issues with the Flomasta bottom-entry fill valve in a toilet; the 'float' comes up but doesn't have any effect, it simply won't stop filling, leading to water constantly flowing down the overflow. The cistern is in a sealed unit so without ripping the whole thing apart is only...
  5. O

    Brushed brass overflow system for basin without integrated overflow

    We bought a Calypso Brenta vanity unit with basin. The basin came without any waste, and with just a hole for the overflow (no integrated channel). We ordered a brushed brass pop up plug for it, to match the rest of the bathroom (including the basin tap). Now we're stuck as we're completely...
  6. T

    Connector for combined bath overflow and supply

    I need advice on a water inlet pipe for a combined bath overflow and supply. I have uploaded photos. On one side is the attachment i need. In the attached pics one side of the fitting has the connector I need. It's missing from other side. Also how do you remove the fitting on left side? Looks...
  7. M

    Countertop Basin Overflow

    I am a bit confused about countertop basins and overflows. I want to fit a countertop basin in out bathroom, but most of the ones I like the look of have no overflow. Is there a drain available for the ones without overflow that prevent overfilling of the basin? Or do people just assume that the...
  8. S

    washing machine drain pipe overflow

    My clothes washing machine drain pipe overflowed water when the machine was emptying, so I augered the pipe over 15 feet and I even had a plumber do the same while he was there for something else. But when I poured water into the standpipe to check it before using the machine again, the water...
  9. M

    Bending overflow pipe

    Anyone else have success bending overflow pipe in there 22mm bender?
  10. J

    Bath overflow and waste recommendations

    Existing bath overflow and waste was a pop up and its broken, so needs replacing. Not going for a popup again. My requirements are - good water flow and easy to clean - don't want it to get clogged with hair - unfortunately it ends up being my job to clean the drain. 1. Click clack 2. flipper...
  11. C

    Leaky overflow pipe at loft level but no water tank in my loft.

    Hi all, I live in an end of terrace house and there are two overflow pipes next to each other on my neighbours side of the fence. I assumed that the one closest to us was our overflow pipe. It has recently started dripping constantly and it is damaging our fence. Thinking it was my issue, I...
  12. R

    Kitchen sink overflow cover

    Hi. The cover has come off the overflow pipe on my kitchen sink. It was looking very tarnished anyway, so needs replacing. Can I buy any cover or does it have to be a certain type? I have attached a photo of the overflow in question. Many thanks Rachel
  13. M

    Syphon internal overflow

    How does the internal overflow work on Syphons like the one I have attached a picture of. Thanks. I know how they work on the modern flush val
  14. C

    Leaking Cold water storage tank and overflow

    Hi there Hoping for some advice on a plumbing issue. Bit of background - currently I am not using my gas central heating system. The system is 20+ years old and kept breaking down and various plumbers visited and fixed problems but advised system flushes or a range of options - essentially the...
  15. I

    Overflow issue combination cylinder

    I instanly assumed I had a problem with the ballcock valve as overflow pouring out but on inspection I noticed that the ballcock is working efficiently but water seemed to be coming into the top of the tank from what I think is the internal vent making me think the hot water is overheating and...
  16. L

    Bath Waste Overflow Dilemma

    Can anyone suggest a compatible overflow waste that works with this Bath? Appleby Roll Top (freestanding) see link below. I don’t want to fit an exposed chrome Roll top type overflow that is often suggested . They are pricey for a start. Just require a simple standard one with Flexi tube and...
  17. L

    Can I add an overflow (i.e. secondary) rainwater drain in an internal lightwell that feeds into a bathroom's soil pipe?

    I would appreciate some advice. I have a flat on the 3rd floor of a converted house, which has a lightwell in the middle of the flat. The bottom of the lightwell reaches the 3rd floor (my flat’s floor level) and has a roof lantern for the flat on the 2nd floor. I plan to build a small bathroom...
  18. A

    Bath Overflow and Waste Connection

    Hi, I bought a new bath overflow and waste which I thought would be simple to install. The existing seems to have been plumbed differently. Does any one know the connection I need in the second photo? I had to cut the old overflow off as it wouldn't loosen.
  19. N

    Crack in overflow pipe

    Hi I was hoping for some advice for a non-plumber! I live in a flat in a tenement building in Edinburgh - there is an overflow pipe emerging from the wall near the top of the building which has been constantly dripping for some time. It has been difficult to find out which flat the pipe is...
  20. K

    23mm overflow?

    Put a boiler in this week and positioned it nicely to use the old condense thats run behind plasterboard but ended up snapping it if at the elbow, no probs I'll cut a neat hole and connect onto the pipe with an elbow. WTF is 23mm overflow! I can't get anything on it, too tight for mechanical...
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