TheRock/rocm-libraries/projects/miopen/test/random.hpp

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#ifndef GUARD_MIOPEN_TEST_RANDOM_HPP
#define GUARD_MIOPEN_TEST_RANDOM_HPP

#include "../driver/random.hpp"

namespace prng {
template <typename T>
inline T gen_descreet_uniform_sign(double scale, int32_t range)
{
    return static_cast<T>(scale * prng::gen_A_to_B(-range + 1, range));
}

template <typename T>
inline T gen_descreet_unsigned(double scale, int32_t range)
{
    return static_cast<T>(scale * static_cast<double>(gen_0_to_B(range)));
}

} // namespace prng

// lambda factory
template <typename T, typename ScaleT, typename RangeT>
auto uniform_signed_initializer(ScaleT scale_arg, RangeT range_arg)
{
    return [=](auto&&...) -> T {
        // uniform sign give balance of both negative and positive values
        return prng::gen_descreet_uniform_sign<T>(scale_arg, range_arg);
    };
}

template <typename T, typename ScaleT, typename RangeT>
auto uniform_unsigned_initializer(ScaleT scale_arg, RangeT range_arg)
{
    return [=](auto&&...) -> T { return prng::gen_descreet_unsigned<T>(scale_arg, range_arg); };
}

#endif // GUARD_MIOPEN_TEST_RANDOM_HPP