Misc cpp functions

my_lib.hpp

template<typename T,long N>
constexpr long countof(T(&)[N]){return N;}
//TODO: add this -http://stackoverflow.com/a/24881903
//TODO: file embedding lib
/*
void GetResourceAsString(int nResourceID, CStringA &strResourceString)
{
    HRSRC hResource = FindResource(NULL, MAKEINTRESOURCE(nResourceID),  L"DATA");

    HGLOBAL hResHandle = LoadResource(NULL, hResource);

    const char* lpData = static_cast<char*> ( LockResource(hResHandle) );

    strResourceString.SetString(lpData, SizeofResource(NULL, hResource));

    FreeResource(hResource);
}
*/

#define IMPL_BITMASK_ENUM(T)   \
inline constexpr T operator&(T x, T y){ return static_cast<T> (static_cast<std::underlying_type<T>::type>(x) & static_cast<std::underlying_type<T>::type>(y));}\
inline constexpr T operator|(T x, T y){ return static_cast<T> (static_cast<std::underlying_type<T>::type>(x) | static_cast<std::underlying_type<T>::type>(y));}\
inline constexpr T operator^(T x, T y){ return static_cast<T> (static_cast<std::underlying_type<T>::type>(x) ^ static_cast<std::underlying_type<T>::type>(y));}\
inline constexpr T operator~(T x){ return static_cast<T> (~static_cast<std::underlying_type<T>::type>(x));}\
inline T & operator&=(T & x, T y){x= x & y;return x;}\
inline T & operator|=(T & x, T y){x= x | y;return x;}\
inline T & operator^=(T & x, T y){x= x ^ y;return x;}