intro(3) — Subroutines
Digital
NAME
intro − introduction to library functions
DESCRIPTION
This section describes functions that may be found in various libraries. The library functions are those other than the functions that directly invoke DEC OSF/1 system primitives, described in Section 2.
The Section 3 DEC OSF/1 reference pages are made up of an OSF-supplied component and a Digital-supplied component. The title line of an OSF-supplied reference page carries an "OSF" label while the Digital-supplied reference pages are labeled "Digital".
If OSF-supplied code operates differently on Digital platforms or has Digital extensions, an Environment Notes section is added to the OSF-supplied reference page. All reference pages that have an Environment Notes section have an "Environment_Note_Added" label added to the title line.
When needed, technical corrections have been made to the OSF-supplied reference pages.
The suffixes used on some Digital-supplied reference pages are used only to allow reference pages with the same base name to exist on DEC OSF/1 systems. When used, suffixes are made up of one to four letters. See the man(1) reference page for more information on suffixes.
ERRORS
Functions in the math library may return conventional values when the function is undefined for the given arguments or when the value is not representable. In these cases the external variable errno is set to the value EDOM (domain error) or ERANGE (range error). For further information, see intro(2). The values of EDOM and ERANGE are defined in the include file <math.h>.
FILES
/usr/lib/libc.a
/usr/lib/libcP.a
/usr/lib/libm.a
/usr/lib/libcV.a