osf1 man page for getpagesize

getpagesize(2)							System Calls Manual						    getpagesize(2)

NAME
       getpagesize - Gets the system page size

SYNOPSIS
       #include <unistd.h>

       int getpagesize ( void );

STANDARDS
       Interfaces documented on this reference page conform to industry standards as follows:

       getpagesize(): XPG4-UNIX

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

DESCRIPTION
       The  getpagesize()  function returns the number of bytes in a page. You might need to include this value in parameters to memory management
       system calls.

       The page size is an operating system page size and might differ from the underlying hardware page size.

RETURN VALUES
       The getpagesize() function returns the number of bytes in a page, and is always successful.

RELATED INFORMATION
       Functions: brk(2), getrlimit(2), madvise(2), mmap(2), mprotect(2), msync(2), munmap(2)

       Routines: sysconf(3)

       Standards: standards(5) delim off

																    getpagesize(2)