From ae88cda44a298d602fe19b4e018159cc0b873e4a Mon Sep 17 00:00:00 2001
From: Simon Brand <simon@codeplay.com>
Date: Tue, 24 Oct 2017 15:55:40 +0100
Subject: [PATCH] More constexpr fixes

---
 optional.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/optional.hpp b/optional.hpp
index 313d5fb..8d158c1 100644
--- a/optional.hpp
+++ b/optional.hpp
@@ -459,11 +459,11 @@ public:
   /// `*this` is empty, otherwise an `optional<U>` is constructed from the
   /// return value of `std::invoke(std::forward<F>(f), value())` and is
   /// returned. \group map \synopsis template <class F> auto map(F &&f) &;
-  template <class F> constexpr auto map(F &&f) & {
+  template <class F> TL_OPTIONAL_11_CONSTEXPR auto map(F &&f) & {
     return map_impl(*this, std::forward<F>(f));
   }
 
-  template <class F> constexpr auto map(F &&f) && {
+  template <class F> TL_OPTIONAL_11_CONSTEXPR auto map(F &&f) && {
     return map_impl(std::move(*this), std::forward<F>(f));
   }