Re: macro

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Mohit Kalra wrote:
| http://www.kernelnewbies.org/faq/index.php3#dowhile
|
| Regards,
| Mohit Kalra
|
| "It is a capital mistake to theorize before one has data.
| Insensibly one begins to twist facts to suit theories, instead of theories
| to suit facts."
| -SH
|
|
|

|                       "R!SC"

|                       <risc54@inwind.it>            To:
<kernelnewbies@nl.linux.org>

|                       Sent by:                      cc:

|                       kernelnewbies-bounce@n        Subject:  macro

|                       l.linux.org

|

|

|                       10/02/02 04:13 PM

|

|

|
|
|
| often i see in the linux kernel source, the macro written in following
| mode:
|
| #define macro_name do{
|       asm volatile{....}
|   while(0);
|
| why use do while(0) if the number of loop is one?
|
| Thanks
| R!SC
|
|
|
| --
| Kernelnewbies: Help each other learn about the Linux kernel.
| Archive:       http://mail.nl.linux.org/kernelnewbies/
| FAQ:           http://kernelnewbies.org/faq/
|

I think it is a method of creating a block that will always be grouped
together no matter how certain statements get evaluated.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQE9mvcROSid126whWsRAlXIAKCGrfWx/8e8kw8WiS7OD7S0br0smgCgw7mv
TFaI7tag7i/U3pcnW0FBbAA=
=VbhR
-----END PGP SIGNATURE-----

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/


[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux