for more info reg. these types of macros refer to kernel newbies FAQ. http://www.kernelnewbies.org/faq/. Good explanation from Ben Collins. Thanks, sreedhar. -----Original Message----- From: K.R. Foley [mailto:kr@cybsft.com] Sent: Wednesday, October 02, 2002 7:09 PM To: Mohit Kalra Cc: R!SC; kernelnewbies@nl.linux.org Subject: Re: macro -----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/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
