diff options
Diffstat (limited to 'compat/meta.hpp')
| -rw-r--r-- | compat/meta.hpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compat/meta.hpp b/compat/meta.hpp index ce81b3d0..80eca89a 100644 --- a/compat/meta.hpp +++ b/compat/meta.hpp @@ -12,6 +12,11 @@ template<typename t> using cv_qualified = std::conditional_t<std::is_fundamental_v<std::decay_t<t>>, std::decay_t<t>, const t&>; +#define progn(...) (([&]() { __VA_ARGS__ })()) +#define prog1(x, ...) (([&]() { auto _ret1324 = (x); do { __VA_ARGS__; } while (0); return _ret1324; })()) + +#define once_only(...) do { static bool once__ = false; if (!once__) { once__ = true; __VA_ARGS__; } } while(false) + #if 0 #include <tuple> |