From 8afe1814483ec10f1f425a60d1fc80fe6e3cd8f1 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 3 May 2023 22:12:28 -0400
Subject: Avoid boolean arithmetic

---
 include/chilbert/detail/gray_code_rank.hpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'include')

diff --git a/include/chilbert/detail/gray_code_rank.hpp b/include/chilbert/detail/gray_code_rank.hpp
index b049540..f87fa4b 100644
--- a/include/chilbert/detail/gray_code_rank.hpp
+++ b/include/chilbert/detail/gray_code_rank.hpp
@@ -88,6 +88,8 @@ gray_code_rank_inv(const I&     mask,
                    I&           g,
                    I&           gi)
 {
+  using Rack = typename I::Rack;
+
   assert(mask.size() == n);
   assert(ptrn.size() == n);
   assert(r.size() == n);
@@ -100,9 +102,9 @@ gray_code_rank_inv(const I&     mask,
   auto m  = mask.mask(n - 1);
   auto ri = r.begin(b - 1);
 
-  typename I::Rack gi0 = 0;
-  typename I::Rack gi1 = 0;
-  typename I::Rack g0  = 0;
+  Rack gi0{};
+  Rack gi1{};
+  Rack g0{};
 
   for (size_t i = 0; i < n; ++i) {
     if (mask.test(m)) { // Unconstrained bit
@@ -117,7 +119,7 @@ gray_code_rank_inv(const I&     mask,
       }
       --ri;
     } else { // Constrained bit
-      g0  = (ptrn.test(m) > 0);
+      g0  = Rack{ptrn.test(m)};
       gi1 = gi0;
       gi0 = g0 ^ gi1;
       if (gi0) {
-- 
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