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overflowing

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. B

    Grant - Flow or Return.../ F&E tank overflowing

    Ive never fitted a Grant, well, not many. Anyhoo, I was mending a 2PV for a custard and he talks to me about an ongoing problem...the F&E tank regularly fills with hot primary and it all comes out of the overflow. Apparently someone changed the circ pump a while back and that made it better, now...
  2. Kewat66

    Ravenheat LS100 T overflowing

    Hi All, Attended a service today for Ravenheat Whitestar LS 100 T. During the process of the service i noticed the PRV overflow constantly running with water. not excessively, but enough to notice. I checked the water pressure gauge to find it registering 3 bar. i released a bit of the...
  3. W

    Cold water tank overflowing after changing ballcock

    Hi peeps new to this forum and the world of plumbing. I've got a issue that two plumbers have so far failed to resolve and is driving me round the bend. I currently have a cold water tank that feeds my upstairs toilet recently it started overflowing and even though I could not find anything...
    • Willowandmikey
    • Thread
    • after ballcock changing cold cold water cold water tank overflowing tank water water tank
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  4. W

    Expansion tank overflowing.

    Am looking after a bungalow where Central Heating & Hot Water has been turned off for about a month. In fact I had turned off water supply at stopcock outside because of heavily dripping taps in kitchen. Today the taps were replaced. Great, no more dripping. After fitting taps, the water...
  5. D

    Overflowing toilet...Please help..

    Hi all... just moved house and found that the upstairs loo overflows constantly when flushed, all parts look ok and bob up and down ( saiglobal) Any advise on what I should be checking? And if I cant fix it was just wondering if it did need replacing would i be able to use an original torbeck...
  6. J

    Attic Central Heating Expansion Tank Overflowing

    Hi, I have a flat with a heating system approx 30 years old. I have a boiler in kitchen, hot water cylinder in airing cupboard and two tanks in my loft (a big cold water tank and a smaller central heating expansion tank). In the last few weeks, the overflow from my central heating expansion...
    • JamesL85
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    • Replies: 27
    • Forum: Plumbing Jobs | The Job-board
  7. Keefy

    Pub Tilet Overflowing

    Got asked to look at why this local pub toilet was constantly running water down the back of the pan and discovered this, is this one of those plumbline things?
  8. L

    cold water header tank overflowing

    This has happened on and off for years. It only happens sometimes after I use the shower which has a direct cold water gravity feed to power shower pump from the header tank. Running hot and cold taps for short time usually stops the overflow and normality is resumed. but its a pain that it...
    • litody
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    • Forum: Plumbing Jobs | The Job-board
  9. D

    Sanivite 3 Problem water overflowing when soapy water needs pumping away

    Hi The following photos show my brothers Saniflo Sanivite configuration. Its connected to the washing machine, dishwasher and also the sink with a insinkerator waste food disposal. The problem is that when the sink is used or washing machine the macerator overflows from the top...
    • dukes
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    • Forum: Plumbing Jobs | The Job-board
  10. R

    overflowing F & E

    I've got a customer who's F & E tank keeps overflowing randomly and was wondering if anyone here had any ideas. I originally went and replaced the ball valve, it wasn't passing when I went but was old/scaled so I assumed that it was the cause and replaced it. Got a call yesterday saying it had...
  11. R

    Immersion tank overflow is overflowing.

    I've checked this on the forum and think similar question has been asked and answered but not sure. The overflow on outside wall is overflowing. we've traced it back to the immersion tank, have tried turning down temp but no difference, have bent the arm of ballcock slightly also. This seemed...
  12. M

    Overflowing F&E

    I know this has been done to death but just want to cover myself with your help if that's ok. f&e tank overflowing have removed water and isolated float valve and a couple of days later it's overflowing again! Perforated coil ?new cylinder? Cylinder is at least 15 years old I know I know the...
  13. G

    overflowing washing machine

    Hi i wonder if anyone can help please i have a customer whose washing machine emptys into a 42mm stand pipe via the flexi hose .Although the waste pipe is completly clear the washing machine water still overflows.Idont know why any helpfull suggestions gratefully recieved.
    • gasfit247
    • Thread
    • clear flexi machine overflowing stand washing washing machine waste water
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  14. Z

    Overflowing drain

    Hi I live in a rented house where the inspection hatch to the waste pipe that connects our waste pipes into that of the whole terrace of houses is in our back yard. It is the only access point on the whole row of five houses as all the others have been built over. My problem is that the main...
  15. G

    expansion tank filling up / overflowing ???

    hiya lads this one has got me baffled,,, customer complains of overflow coming from expansion tank so i changed the ball valve and everything seemed ok , phones me up and says its still doin it , i checked the valve and its ok and no dirty water from hot taps so i think the coil in cylinder is...
  16. A

    CWST Overflowing problem

    Hi, I have been called to a customers property as they had an overflowing cwst in the loft, the overflow for this and the feed and expansion tank are seperate and terminate at different locations. The ball valve was constantly dripping so I presumed this was the problem and have replaced this...
  17. S

    s plan overflowing

    hi can you help i have relaced my danesmoor 15/19 with a danesmoor 20/25 and relocated boiler to a different location , i now have a problem with system overflowing thou the vent pipe after approx 5 mins of running could this be the result of to much air in the system . please not the boiler...
  18. A

    Supply tank overflowing and radiators come with hot water on only

    For about a year now the radiators have been coming on with the hot water switch only on whereby i have got round this by turning the rads of but the past few weeks the small feed and overflow tank in the loft is filling up with hot water up from the airing cuboard from the feed pipe which is...
  19. S

    fitted ballcock in attic water tank but still overflowing

    Hi there, I have just fitted a new ballcock in water tank in loft but tank is filling too full and overflowing (reason for repalcing old ballcock). Have I done something wrong? Have tried bending arm down but to no avail. Can anyone help me? Thanks in advance.
    • Sun4
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    • attic ballcock cylinder fault fitted level overflowing still tank valve water water tank
    • Replies: 13
    • Forum: Plumbing Jobs | The Job-board
  20. T

    Cold water storage cistern overflowing

    Hi all, I could use some ideas please - I've been looking at a CWSC that's overflowing but not all the time (which makes me think it's not the ball valve). It appears to happen only when the immersion heater is switched on but the water doesn't come from the vent pipe like I'd expect. The...
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