binary_collision: use rng::Uniform

could be further streamlined

This changes the behavior of RngC: it can now return 0 instead of 1.
However, it seems like this is actually the correct behavior.

src/include/binary_collision.hxx

@@ -2,6 +2,7 @@
 #pragma once
 
 #include "cuda_compat.h"
+#include "rng.hxx"
 
 #include <cmath>
 
@@ -14,17 +15,9 @@ struct RngC
   // ----------------------------------------------------------------------
   // uniform
   //
-  // returns random number in ]0:1]
+  // returns random number in [0:1[
 
-  real_t uniform()
-  {
-    real_t ran;
-    do {
-      ran = real_t(random()) / RAND_MAX;
-    } while (ran == real_t(0.f));
-
-    return ran;
-  }
+  real_t uniform() { return rng::Uniform<real_t>{}.get(); }
 };
 
 // ======================================================================