2 files changed, 23 insertions, 0 deletions

diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 959084cdf..1c9be718f 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -22,6 +22,7 @@ set(SRCS
             )
 
 set(HEADERS
+            alignment.h
             assert.h
             bit_field.h
             bit_set.h
diff --git a/src/common/alignment.h b/src/common/alignment.h
new file mode 100644
index 000000000..b77da4a92
--- /dev/null
+++ b/src/common/alignment.h
@@ -0,0 +1,22 @@
+// This file is under the public domain.
+
+#pragma once
+
+#include <cstddef>
+#include <type_traits>
+
+namespace Common {
+
+template <typename T>
+constexpr T AlignUp(T value, size_t size) {
+    static_assert(std::is_unsigned<T>::value, "T must be an unsigned value.");
+    return static_cast<T>(value + (size - value % size) % size);
+}
+
+template <typename T>
+constexpr T AlignDown(T value, size_t size) {
+    static_assert(std::is_unsigned<T>::value, "T must be an unsigned value.");
+    return static_cast<T>(value - value % size);
+}
+
+} // namespace Common