Big int
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int bignum = 123123425364347456758696679;The compiler says: intger to big for int type (or something like that) How do i make the bignum work? (i'm guessing this is a simple question soooo be gentle :^))You'll need to use something like the DECIMAL data type, which supports 296. If that is not an option, the only other thing I can think of is to store it as a string. I created a class once that did this, and it had basic math operations (+, -, /, *, !) so you could add, subtract, divide, etc very large numbers.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"We will be known forever by the tracks we leave." - Native American Proverb
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Not even close to being large enough. The largest value for
__int64is 263, or 264 if unsigned.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"We will be known forever by the tracks we leave." - Native American Proverb
The pattern of his number indicated to me that he had just semi-randomly typed them to indicate he needed something larger than an int. Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke
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_int64Does that mean a int thats 64 numbers long or is that defined the standard library? nevermind........ 2 to the power or 64. I see. IsLARGE_INTEGERin the standard library too? <--- is that C style programming? "If you try to talk sense to a fool, he'll think your foolish" -- modified at 14:06 Wednesday 26th April, 2006__int64is 64-bits long. I assumed you had simply typed gibberish indicating you needed a long number. If, however, the number you typed earlier (123123425364347456758696679) actually needs to be stored, __int64 isn't long enough.LARGE_INTEGERis a Win32 thing, but it may be defined by other headers. Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke -
Thanks for pointing that out Mr Crow. Though might I say, it has taken you two replies to say that those of us who are trying to help the OP are wrong. But you have yet to suggest an answer yourself.
waldermort wrote:
But you have yet to suggest an answer yourself.
To suggest a way not to do something is in itself an answer. On a similar note, by eliminating all the wrong/incorrect ways of doing something, what we should be left with is the correct way. This was a philosophy used by Thomas Edison.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"We will be known forever by the tracks we leave." - Native American Proverb
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The pattern of his number indicated to me that he had just semi-randomly typed them to indicate he needed something larger than an int. Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke
As he was not very specific, that's always a possibility.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"We will be known forever by the tracks we leave." - Native American Proverb
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int bignum = 123123425364347456758696679;The compiler says: intger to big for int type (or something like that) How do i make the bignum work? (i'm guessing this is a simple question soooo be gentle :^))The bigger question would be "what are you trying to accomplish?" In other words, do you need to simply store the digits or mathematically manipulate them? If the latter, do you really need a number this big? Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke
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The bigger question would be "what are you trying to accomplish?" In other words, do you need to simply store the digits or mathematically manipulate them? If the latter, do you really need a number this big? Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke
The reason is if i were to create a program that reqiures a digit password. But the password would be huge number (harder to figure out). Or is this a bad way to make a password number? Thanks for the answers everybody!!!:-D "If you try to talk sense to a fool, he'll think your foolish" -- modified at 14:33 Wednesday 26th April, 2006
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The reason is if i were to create a program that reqiures a digit password. But the password would be huge number (harder to figure out). Or is this a bad way to make a password number? Thanks for the answers everybody!!!:-D "If you try to talk sense to a fool, he'll think your foolish" -- modified at 14:33 Wednesday 26th April, 2006
My gut feeling is that it's a terrible idea. Beyond that, an
__int64would be sufficient or simply a random string. Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke -
The reason is if i were to create a program that reqiures a digit password. But the password would be huge number (harder to figure out). Or is this a bad way to make a password number? Thanks for the answers everybody!!!:-D "If you try to talk sense to a fool, he'll think your foolish" -- modified at 14:33 Wednesday 26th April, 2006
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int bignum = 123123425364347456758696679;The compiler says: intger to big for int type (or something like that) How do i make the bignum work? (i'm guessing this is a simple question soooo be gentle :^)) -
Thanks for pointing that out Mr Crow. Though might I say, it has taken you two replies to say that those of us who are trying to help the OP are wrong. But you have yet to suggest an answer yourself.
waldermort wrote:
Though might I say, it has taken you two replies to say that those of us who are trying to help the OP are wrong. But you have yet to suggest an answer yourself.
childish...
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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The reason is if i were to create a program that reqiures a digit password. But the password would be huge number (harder to figure out). Or is this a bad way to make a password number? Thanks for the answers everybody!!!:-D "If you try to talk sense to a fool, he'll think your foolish" -- modified at 14:33 Wednesday 26th April, 2006
If you need a large numeric password then the better way to do it is store it as a string a restrict its contents to characters from '0' to '9'. This password can be arbitrarily long if stored as a string. You would only need it to be represented as an integer if you needed arithmetic or mathematical manipulations. Note that checking if the password is correct does not need mathematics, a simple strcmp() will do the trick. Anyway, if you needed to represent as an integer that fits in 64 bits, then I would sugest _int64 instead of LARGE_INTEGER. The _int64 is a compiler feature, and LARGE_INTEGER is a Windows feature. I would always prefer the compiler feature, for the implementation to be as platform independent as possible. If you need manipulation as an integer and it it larger than 64 bits, then I would sugest you created a class for that. Rilhas