Merge pull request #463 from tituswinters/f.4

Don't mix future runtime customization constexpr.
10 years ago · 023d60ce8b
parent 5458e05b06 3918d16274
commit 023d60ce8b
1 changed files with 7 additions and 0 deletions
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@ -2080,6 +2080,13 @@ This is usually a very good thing.

 Don't try to make all functions `constexpr`. Most computation is best done at run time.

+##### Note
+
+Any API that may eventually depend on high-level runtime configuration or
+business logic should not be made `constexpr`. Such customization can not be
+evaluated by the compiler, and any `constexpr` functions that depend upon that
+API will have to be refactored or drop `constexpr`.
+
 ##### Enforcement

 Impossible and unnecessary.