From e22fbc3ba68b68ead2efcee491f2a2188d6ea948 Mon Sep 17 00:00:00 2001
From: fmontoto <fmontotomonroy@gmail.com>
Date: Tue, 13 Sep 2016 00:32:13 -0300
Subject: [PATCH] simplify get_chunk_idx to do integer division instead of
 float

---
 include/sdsl/k2_tree_helper.hpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/include/sdsl/k2_tree_helper.hpp b/include/sdsl/k2_tree_helper.hpp
index 7d51386ed..61ac99968 100644
--- a/include/sdsl/k2_tree_helper.hpp
+++ b/include/sdsl/k2_tree_helper.hpp
@@ -88,14 +88,11 @@ int _build_from_matrix(const std::vector<std::vector <int>>& matrix,
 inline uint16_t get_chunk_idx(idx_type v, idx_type u, idx_type c_0,
                               idx_type r_0, size_type l, uint8_t k)
 {
-    return std::floor(static_cast<double>(v - r_0) / l) * k +
-           std::floor(static_cast<double>(u - c_0) / l);
+    return  ((v - r_0) / l) * k + (u - c_0) / l;
 }
 
 template<typename t_bv=bit_vector> void build_template_vector(bit_vector& k_t_,
-        bit_vector& k_l_,
-        t_bv& k_t,
-        t_bv& k_l)
+        bit_vector& k_l_, t_bv& k_t, t_bv& k_l)
 {
     k_t = t_bv(k_t_);
     k_l = t_bv(k_l_);