unsigned long long to string conversion

hi,

in c there is a way of getting a unsigned long long into a char array by using sprintf, is there a method in c++ that gets an ull into a string?

thx

stringstream - but I thought you weren't supposed to use C++?

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Mats

how do u use it?

unsigned long long input;
stringstream ss;
string s;
s << input;

Code:

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unsigned long long input = 1234ULL;
stringstream ss;
string s;
ss << input;
ss >> s; // or s = ss.str();

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EDIT:
Oops, unsigned long long, not unsigned long. Note that (signed/unsigned) long long is non-standard in C++ though available as an extension on some compilers.

and __int64 on some others.

> in c there is a way of getting a unsigned long long into a char array by using sprintf,
Yes there is, but the conversion format still depends on your OS/Compiler (until everyone supports C99 properly).

Quote:

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Originally Posted by cyberfish

and __int64 on some others.

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I assume unsigned long long would be unsigned __int64.
I typically just use the macros from the headers, UINT64 or INT64.