PTR_DIFF 660 lib/replace/replace.h #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2))) PTR_DIFF 88 lib/util/memory.h #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))