#endif
}
-static inline int log2i(int x) {
+static inline unsigned log2i(int x) {
assert(x > 0);
return __SIZEOF_INT__ * 8 - __builtin_clz(x) - 1;
return sizeof(unsigned) * 8 - __builtin_clz(x) - 1;
}
+static inline unsigned log2u64(uint64_t x) {
+ assert(x > 0);
+
+#if __SIZEOF_LONG_LONG__ == 8
+ return 64 - __builtin_clzll(x) - 1;
+#else
+#error "Wut?"
+#endif
+}
+
static inline unsigned log2u_round_up(unsigned x) {
assert(x > 0);
(void*)memset(_new_, 0, _size_); \
})
-#define strappenda(a, ...) \
- ({ \
- int _len = strlen(a); \
- unsigned _i; \
- char *_d_, *_p_; \
- const char *_appendees_[] = { __VA_ARGS__ }; \
- for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \
- _len += strlen(_appendees_[_i]); \
- _d_ = alloca(_len + 1); \
- _p_ = stpcpy(_d_, a); \
- for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \
- _p_ = stpcpy(_p_, _appendees_[_i]); \
- _d_; \
+#define strjoina(a, ...) \
+ ({ \
+ const char *_appendees_[] = { a, __VA_ARGS__ }; \
+ char *_d_, *_p_; \
+ int _len_ = 0; \
+ unsigned _i_; \
+ for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
+ _len_ += strlen(_appendees_[_i_]); \
+ _p_ = _d_ = alloca(_len_ + 1); \
+ for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
+ _p_ = stpcpy(_p_, _appendees_[_i_]); \
+ *_p_ = 0; \
+ _d_; \
})
#define procfs_file_alloca(pid, field) \