Unix/Linux Go Back    


NetBSD 6.1.5 - man page for ctod (netbsd section 9)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


CTOD(9) 			  BSD Kernel Developer's Manual 			  CTOD(9)

NAME
     ctod -- macros related to bytes, pages, and disk blocks

SYNOPSIS
     #include <sys/param.h>

     size
     ctod(size x);

     size
     dtoc(size x);

     size
     ctob(size x);

     size
     btoc(size x);

     size
     dbtob(size x);

     size
     btodb(size x);

DESCRIPTION
     The ctod family of macros can be used to convert between bytes, pages (``clicks''), and disk
     blocks.

     The following table lists the possible conversions:

	   Macro	   From 	   To
	   ctod()	   pages	   disk blocks
	   dtoc()	   disk blocks	   pages
	   ctob()	   pages	   bytes
	   btoc()	   bytes	   pages
	   dbtob()	   disk blocks	   bytes
	   btodb()	   bytes	   disk blocks

     These are typical macros that may appear with different names in other operating systems.
     Examples include btop() and btopr() in Solaris.

SEE ALSO
     param(3)

HISTORY
     Some of these macros appeared in Version 7 AT&T UNIX.

CAVEATS
     The described macros make no assumptions about the type of the input parameter.  A caller
     should ensure that neither integer overflow nor integer underflow are possible.

BSD					  April 8, 2011 				      BSD
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 05:30 PM.