ptrdiff_t          62 third_party/libusb/src/msvc/stdint.h #undef ptrdiff_t
ptrdiff_t          64 third_party/libusb/src/msvc/stdint.h   typedef __int64 ptrdiff_t;
ptrdiff_t          66 third_party/libusb/src/msvc/stdint.h   typedef int ptrdiff_t;
ptrdiff_t         551 third_party/talloc/libreplace/replace.h typedef unsigned long long ptrdiff_t ;
ptrdiff_t         163 third_party/zlib/zutil.h        typedef int ptrdiff_t;