I have an enum, as given below. I want to have operator overloading for this enum,.
typedef enum E
{
A = 1 << 0,
B = 1 << 1,
C = 1 << 2,
D = 1 << 3,
ANY = A | B | C | D,
}
E;
//Basic version
inline E operator |(E a, E b)
{
return static_cast<E>(static_cast<int>(a) | static_cast<int>(b));
}
//Templated version
template<typename T, typename Types>
inline T operator |(T var1, Types var2) {
return static_cast<T>(static_cast<unsigned int>(var1) | static_cast<unsigned int>(var2));
}
template<typename T, typename... Types>
inline T operator |(T var1, Types... var2) {
return static_cast<T>(static_cast<unsigned int>(var2...) | static_cast<unsigned int>(var1));
}
I am getting following errors
error: expected ')'
return static_cast<T>(static_cast<unsigned int>(var2...) | static_cast<unsigned int>(var1));
How do I correct it.
Thanks,
TechTotie.
You can try with
template<typename T, typename... Ts>
inline T operator | (T var1, Ts... var2)
{
return static_cast<T>( (static_cast<int>(var2) | ...) | static_cast<int>(var1));
}
But
inline E operator |(E a, E b)
{
return static_cast<E>(static_cast<int>(a) | static_cast<int>(b));
}
also can solve your problem
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