Howard Hinnant wrote:
template <class T> struct to_unsigned_integral {typedef T type;}; template <> struct to_unsigned_integral<char> {typedef unsigned char type;}; template <> struct to_unsigned_integral<signed char> {typedef unsigned char type;}; template <> struct to_unsigned_integral<short> {typedef unsigned short type;}; template <> struct to_unsigned_integral<int> {typedef unsigned int type;}; template <> struct to_unsigned_integral<long> {typedef unsigned long type;}; #if YOUVE_GOT_IT template <> struct to_unsigned_integral<long long> {typedef unsigned long long type;}; #endif
Hey, thanks! I thought I was reinventing the wheel when I came up with a similar implementation. Maybe I was just being naive, but I hoped that the Boost Numeric Conversion Library would be of some help here, no?
If you're paranoid about non-integral types you could dress up the primary template a little to return T only for integral types,
Indeed, I'm doing it with the combination of enable_if and is_integral.
-Howard
Thanks a lot! Slawomir