.TH TYPES 7 .SH NAME types \- primitive system data types .SH SYNOPSIS .B #include <sys/types.h> .SH DESCRIPTION The data types defined in the include file are used in \s-1UNIX\s0 system code; some data of these types are accessible to user code: .PP .nf .so /usr/include/sys/types.h .fi .PP The form .I daddr_t\^ is used for disk addresses except in an i-node on disk, see .IR fs (5). Times are encoded in seconds since 00:00:00 \s-1GMT\s0, January 1, 1970. The major and minor parts of a device code specify kind and unit number of a device and are installation-dependent. Offsets are measured in bytes from the beginning of a file. The .I label_t\^ variables are used to save the processor state while another process is running. .SH SEE ALSO fs(5).