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c++chararraysunsigned-integeritoa

Unsigned int into a char array. Alternative to itoa?

I have a question about unsigned ints. I would like to convert my unsigned int into a char array. For that I use itoa. The problem is that itoa works properly with ints, but not with unsigned int (the unsigned int is treaded as a normal int). How should I convert unsigned int into a char array?

Thanks in advance for help!

Solution

  • using stringstream is a common approach:

    #include<sstream>
...

std::ostringstream oss;
unsigned int u = 598106;

oss << u;
printf("char array=%s\n", oss.str().c_str());

    Update since C++11 there is std::to_string() method -:

     #include<string>
 ...
 unsigned int u = 0xffffffff;
 std::string s = std::to_string(u);