diff options
Diffstat (limited to 'shared/systemd/src/basic/macro.h')
| -rw-r--r-- | shared/systemd/src/basic/macro.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/shared/systemd/src/basic/macro.h b/shared/systemd/src/basic/macro.h index 0c2eb894..f872d41f 100644 --- a/shared/systemd/src/basic/macro.h +++ b/shared/systemd/src/basic/macro.h @@ -295,6 +295,15 @@ static inline size_t GREEDY_ALLOC_ROUND_UP(size_t l) { UNIQ_T(A, aq) < UNIQ_T(B, bq) ? UNIQ_T(A, aq) : UNIQ_T(B, bq); \ }) +/* evaluates to (void) if _A or _B are not constant or of different types */ +#define CONST_MIN(_A, _B) \ + (__builtin_choose_expr( \ + __builtin_constant_p(_A) && \ + __builtin_constant_p(_B) && \ + __builtin_types_compatible_p(typeof(_A), typeof(_B)), \ + ((_A) < (_B)) ? (_A) : (_B), \ + VOID_0)) + #define MIN3(x, y, z) \ ({ \ const typeof(x) _c = MIN(x, y); \ @@ -538,6 +547,15 @@ static inline int __coverity_check_and_return__(int condition) { (y) = (_t); \ } while (false) +#define STRV_MAKE(...) ((char**) ((const char*[]) { __VA_ARGS__, NULL })) +#define STRV_MAKE_EMPTY ((char*[1]) { NULL }) + +/* Iterates through a specified list of pointers. Accepts NULL pointers, but uses (void*) -1 as internal marker for EOL. */ +#define FOREACH_POINTER(p, x, ...) \ + for (typeof(p) *_l = (typeof(p)[]) { ({ p = x; }), ##__VA_ARGS__, (void*) -1 }; \ + p != (typeof(p)) (void*) -1; \ + p = *(++_l)) + /* Define C11 thread_local attribute even on older gcc compiler * version */ #ifndef thread_local |