maths: abs should be constexpr

2018-09-27 14:17:54 +10:00 · 2018-09-27 14:17:54 +10:00 · 6b1dbb3834
commit 6b1dbb3834
parent bc03b36ffc
1 changed files with 1 additions and 0 deletions
--- a/maths.hpp
+++ b/maths.hpp
@ -38,6 +38,7 @@
 namespace cruft {
    ///////////////////////////////////////////////////////////////////////////
    template <typename T>
+    constexpr
    std::enable_if_t<std::is_arithmetic_v<T>, T>
    abs [[gnu::const]] (T t)
    {