topbits           460 src/vfs/tar/tar-internal.c         uintmax_t topbits;
topbits           463 src/vfs/tar/tar-internal.c         topbits = ((uintmax_t) -signbit) << (UINTMAX_WIDTH - LG_256 - (LG_256 - 2));
topbits           476 src/vfs/tar/tar-internal.c             if (((value << LG_256 >> LG_256) | topbits) != value)