Date: Wed, 12 Nov 1997 09:58:14 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: hackers@freebsd.org Subject: A stylistic question... Message-ID: <199711120858.JAA06510@labinfo.iet.unipi.it>
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I have always wondered about this: most if not all programs, and some
pieces of the kernel as well (e.g. userconfig.c)
have a menu/usage function which is written like this:
usage()
{
printf( "bla bla bla...\n" );
printf( "bla bla bla...\n" );
printf( "bla bla bla...\n" );
...
printf( "bla bla bla...\n" );
}
instead of what in my opinion would be much better:
usage()
{
printf( "%s", "bla bla bla...\n"
"bla bla bla...\n"
...
"bla bla bla...\n");
}
yes the code savings are modest (5-10 bytes/call ? but in the kernel
or boot blocks they still matter...) but at runtime the second
approach is faster since the format string must be parsed only once
and it is the shortest possible.
Any reason not to use the second method ?
Cheers
Luigi
-----------------------------+--------------------------------------
Luigi Rizzo | Dip. di Ingegneria dell'Informazione
email: luigi@iet.unipi.it | Universita' di Pisa
tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy)
fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/
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