From 39707b42dc7d80eae741125fc8f8480f341c5763 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Crozet?= <developer@crozet.re>
Date: Sat, 18 May 2013 15:03:54 +0000
Subject: [PATCH] Add rand for nvec.

---
 src/ndim/nvec.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/ndim/nvec.rs b/src/ndim/nvec.rs
index ee9403b1..abfda5bd 100644
--- a/src/ndim/nvec.rs
+++ b/src/ndim/nvec.rs
@@ -1,4 +1,5 @@
 use core::vec::{map_zip, from_elem, map, all, all2};
+use core::rand::{Rand, Rng, RngUtil};
 use core::num::{Zero, Algebraic};
 use std::cmp::FuzzyEq;
 use traits::dim::Dim;
@@ -93,6 +94,20 @@ impl<D, T:FuzzyEq<T>> FuzzyEq<T> for NVec<D, T>
   { all2(self.at, other.at, |a, b| a.fuzzy_eq_eps(b, epsilon)) }
 }
 
+impl<D: Dim, T: Rand + Zero + Copy> Rand for NVec<D, T>
+{
+  fn rand<R: Rng>(rng: &R) -> NVec<D, T>
+  {
+    let     dim = Dim::dim::<D>();
+    let mut res : NVec<D, T> = Zero::zero();
+
+    for uint::range(0u, dim) |i|
+    { res.at[i] = rng.gen() }
+
+    res
+  }
+}
+
 impl<D: Dim, T:ToStr> ToStr for NVec<D, T>
 {
   fn to_str(&self) -> ~str