diff options
Diffstat (limited to 'compat/macros1.h')
| -rw-r--r-- | compat/macros1.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compat/macros1.h b/compat/macros1.h index 5e3129d5..f6b05f0f 100644 --- a/compat/macros1.h +++ b/compat/macros1.h @@ -42,6 +42,7 @@ #ifdef __cplusplus # define progn(...) ([&]() -> decltype(auto) { __VA_ARGS__ }()) +# define eval_once2(expr, ctr) eval_once3(expr, ctr) +# define eval_once3(expr, ctr) ([&] { [[maybe_unused]] static const char init_ ## ctr = ((void)(expr), 0); }()) # define eval_once(expr) eval_once2(expr, __COUNTER__) -# define eval_once2(expr, ctr) ([&] { [[maybe_unused]] static auto init ## ctr = (((void)(expr)), 0); }()) #endif |