Add round_up function

2 files changed, 14 insertions, 0 deletions

diff --git a/test/utils_test.cc b/test/utils_test.cc
index 8596104..9c2fb06 100644
--- a/test/utils_test.cc
+++ b/test/utils_test.cc
@@ -78,5 +78,12 @@ TEST_CASE("Static loop with mult-dim iterator (Iterator<5, 2>)",) {
   CHECK(result == 11223344);
 }
 
+TEST_CASE("Round up",) {
+  CHECK(round_up(0, 5) == 0);
+  CHECK(round_up(1, 5) == 5);
+  CHECK(round_up(4, 5) == 5);
+  CHECK(round_up(6, 5) == 10);
+}
+
 }
 }
diff --git a/utils.h b/utils.h
index da4317b..94b16d3 100644
--- a/utils.h
+++ b/utils.h
@@ -199,4 +199,11 @@ __attribute__((always_inline)) static inline void StaticLoop(Args&&... args) {
   StaticLoop<Body, typename StaticLoopIterator::next>(std::forward<Args>(args)...);
 }
 
+/*
+ * Round up
+ */
+static constexpr Index round_up(Index value, Index factor) {
+  return (value + factor - 1) / factor * factor;
+}
+
 }