The actual value of ~0UL is architecture dependent. The unsigned long type must be at least 32 bits, but can be larger. Especially on 64-bit systems, unsigned long usually is 64 bits long, for which ~0UL will result in 0xFFFFFFFFFFFFFFFF instead of 0xFFFFFFFF. If this is the case, comparisons like kv->len == ~0UL, where kv->len is of type uint32_t, are always false. This commit replaces ~0UL with the appropriate max value defines from stdint.h.
armink
commented
9 months ago
The actual value of
~0ULis architecture dependent. Theunsigned longtype must be at least 32 bits, but can be larger. Especially on 64-bit systems,unsigned longusually is 64 bits long, for which~0ULwill result in0xFFFFFFFFFFFFFFFFinstead of0xFFFFFFFF. If this is the case, comparisons likekv->len == ~0UL, wherekv->lenis of typeuint32_t, are always false. This commit replaces~0ULwith the appropriate max value defines from stdint.h.