Need help with generating random fromseed in my class

[rain]

Hello.

I am trying to write class for generating random floats.

template<unsigned short seed>
class PseudoRandomGenerator {
public:
    PseudoRandomGenerator();
    
    std::default_random_engine generator (seed);

    std::uniform_real_distribution<float> distribution;


    float operator()() {
	return distribution(generator);
    }
};

However C++ is not happy:

error: ‘seed’ is not a type
     std::default_random_engine generator (seed);
                                           ^

I would like to know how I could fix this?

[Peter87]

Initialize the generator in the constructor.

template<unsigned short seed>
PseudoRandomGenerator<seed>::PseudoRandomGenerator()
:	generator(seed)
{
}

[cire]

Alternately:

template<unsigned short seed>
class PseudoRandomGenerator {
public:
    std::default_random_engine generator = std::default_random_engine(seed);
    std::uniform_real_distribution<float> distribution;


    float operator()() {
        return distribution(generator);
    }
};

Although, why you would opt for the constraint that the seed must be a compile-time constant is a little puzzling. Not a good template candidate.