diff options
| author | Maxime Coste <mawww@kakoune.org> | 2017-03-15 17:55:34 +0000 |
|---|---|---|
| committer | Maxime Coste <mawww@kakoune.org> | 2017-03-15 18:00:58 +0000 |
| commit | db9b863222dbd51154c422cf85bc8fafacd5b25b (patch) | |
| tree | c64d4a42ff62372736d747a1ab25568954ba6e32 /src/flags.hh | |
| parent | a49e175727928b8b45c0c2ccdb01f143ea6d18c2 (diff) | |
Migrate WithBitOps template specialization to with_bit_ops function
This way we dont depend on knowing the base template to enable bit ops
on an enum type.
Diffstat (limited to 'src/flags.hh')
| -rw-r--r-- | src/flags.hh | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/flags.hh b/src/flags.hh index d9755efa..74a7188f 100644 --- a/src/flags.hh +++ b/src/flags.hh @@ -3,20 +3,22 @@ #include <type_traits> +#include "meta.hh" + namespace Kakoune { template<typename Flags> -struct WithBitOps : std::false_type {}; +constexpr bool with_bit_ops(Meta::Type<Flags>) { return false; } template<typename Flags> using UnderlyingType = typename std::underlying_type<Flags>::type; template<typename Flags, typename T = void> -using EnableIfWithBitOps = typename std::enable_if<WithBitOps<Flags>::value, T>::type; +using EnableIfWithBitOps = typename std::enable_if<with_bit_ops(Meta::Type<Flags>{}), T>::type; template<typename Flags, typename T = void> -using EnableIfWithoutBitOps = typename std::enable_if<not WithBitOps<Flags>::value, T>::type; +using EnableIfWithoutBitOps = typename std::enable_if<not with_bit_ops(Meta::Type<Flags>{}), T>::type; template<typename Flags, typename = EnableIfWithBitOps<Flags>> constexpr Flags operator|(Flags lhs, Flags rhs) |