Repo created

libs/base/random.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <limits>
+#include <random>
+
+namespace base
+{
+template <class T>
+class UniformRandom
+{
+  static_assert(std::is_integral<T>::value);
+
+  std::random_device m_rd;
+  std::mt19937 m_gen;
+
+  using distribution_int_type =
+      std::conditional_t<sizeof(T) != 1, T, std::conditional_t<std::is_signed_v<T>, short, unsigned short>>;
+  std::uniform_int_distribution<distribution_int_type> m_distr;
+
+public:
+  UniformRandom(T min, T max) : m_gen(m_rd()), m_distr(min, max) {}
+  UniformRandom() : UniformRandom(std::numeric_limits<T>::min(), std::numeric_limits<T>::max()) {}
+
+  T operator()() { return static_cast<T>(m_distr(m_gen)); }
+};
+}  // namespace base