Defines starting with `u' in bsd/sys

• UF_APPEND bsd/sys/stat.h:195
• UF_EXCLOSE bsd/sys/filedesc.h:96
• UF_IMMUTABLE bsd/sys/stat.h:194
• UF_MAPPED bsd/sys/filedesc.h:97
• UF_NODUMP bsd/sys/stat.h:193
• UF_OPAQUE bsd/sys/stat.h:196
• UF_RESERVED bsd/sys/filedesc.h:98
• UF_SETTABLE bsd/sys/stat.h:192
• UID_MAX bsd/sys/syslimits.h:74
• UIO_MAXIOV bsd/sys/uio.h:96
• UIO_SMALLIOV bsd/sys/uio.h:97
• USER_BC_BASE_MAX bsd/sys/sysctl.h:298
• USER_BC_DIM_MAX bsd/sys/sysctl.h:299
• USER_BC_SCALE_MAX bsd/sys/sysctl.h:300
• USER_BC_STRING_MAX bsd/sys/sysctl.h:301
• USER_COLL_WEIGHTS_MAX bsd/sys/sysctl.h:302
• USER_CS_PATH bsd/sys/sysctl.h:297
• USER_EXPR_NEST_MAX bsd/sys/sysctl.h:303
• USER_LINE_MAX bsd/sys/sysctl.h:304
• USER_MAXID bsd/sys/sysctl.h:317
• USER_POSIX2_C_BIND bsd/sys/sysctl.h:307
• USER_POSIX2_C_DEV bsd/sys/sysctl.h:308
• USER_POSIX2_CHAR_TERM bsd/sys/sysctl.h:309
• USER_POSIX2_FORT_DEV bsd/sys/sysctl.h:310
• USER_POSIX2_FORT_RUN bsd/sys/sysctl.h:311
• USER_POSIX2_LOCALEDEF bsd/sys/sysctl.h:312
• USER_POSIX2_SW_DEV bsd/sys/sysctl.h:313
• USER_POSIX2_UPE bsd/sys/sysctl.h:314
• USER_POSIX2_VERSION bsd/sys/sysctl.h:306
• USER_RE_DUP_MAX bsd/sys/sysctl.h:305
• USER_STREAM_MAX bsd/sys/sysctl.h:315
• USER_TZNAME_MAX bsd/sys/sysctl.h:316