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// isxdigit example (C++)
#include <iostream> // std::cout, std::hex, std::dec
#include <string> // std::string
#include <sstream> // std::stringstream
#include <locale> // std::locale, std::isxdigit
int main ()
{
std::locale loc;
std::string str="ffff";
if ( std::isxdigit(str[0],loc) )
{
int number;
std::stringstream(str) >> std::hex >> number;
std::cout << "The hexadecimal number " << std::hex << number;
std::cout << " is " << std::dec << number << ".\n";
}
return 0;
}
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