Data type question

Im attempting to store a number into a variable, but I need a variable that would go high enough to store it. :-\

10^16

or

100,000,000,000,000,000

I've heard of C having an unsigned long long int, but does C++ have anything that could hold it?

Quote:

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Originally Posted by Campuschris

Im attempting to store a number into a variable, but I need a variable that would go high enough to store it. :-\

10^16

or

100,000,000,000,000,000

I've heard of C having an unsigned long long int, but does C++ have anything that could hold it?

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It depends on the compiler. The C++ language has no predefined maximum integer size.

Regards,

Paul McKenzie

Try out std::numeric_limits<int>/std::numeric_limits<long> to see if you achieve the range you want. But this would be platform/implementation specific and can vary.

You can try libraries like BigInt/GMP that provide types with larger range and should help you.

You can use __int64 variables. It is NOT part of standard and is microsoft specific, but may get your job done if you are working with Visual Studio.