Add choose implementation for fixed size arrays

2013-08-06 12:24:00 +10:00 · 2013-08-06 12:24:00 +10:00 · d6c0a821f4
commit d6c0a821f4
parent c3a268b2c3
1 changed files with 6 additions and 0 deletions
--- a/random.hpp
+++ b/random.hpp
@ -43,6 +43,12 @@ namespace util {
        return *cursor;
    }

+    template <typename T, size_t N>
+    T&
+    choose (T (&v)[N]) {
+        return v[static_cast<size_t> (random<float> () * N)];
+    }
+
    template <typename T>
    typename T::value_type&
    choose (T begin, T end) {