diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2003-08-12 14:23:40 +0400 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2003-08-12 14:23:40 +0400 |
| commit | c86c10b803a309d887fd8d02160fe118ab31b531 (patch) | |
| tree | 27b40d5eb82c208ec439d6ae7229430630bf83cd /winsup/cygwin | |
| parent | 6c7560c9016d67d23d1ec358b07bfce94eecd292 (diff) | |
* include/sys/param.h (NBBY): Define if not defined.
* include/sys/param.h (setbit): Add new bitmap related macro.
(clrbit): Likewise.
(isset): Likewise.
(isclr): Likewise.
(howmany): Add new counting/rounding macro.
(rounddown): Likewise.
(roundup): Likewise.
(roundup2): Likewise.
(powerof2): Likewise
(MIN): Add macro for calculating min.
(MAX): Add macro for calculating max.
Diffstat (limited to 'winsup/cygwin')
| -rw-r--r-- | winsup/cygwin/ChangeLog | 18 | ||||
| -rw-r--r-- | winsup/cygwin/include/sys/param.h | 23 |
2 files changed, 41 insertions, 0 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index cfd58efee..5f9c76fc2 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,21 @@ +2003-08-12 Corinna Vinschen <corinna@vinschen.de> + + * include/sys/param.h (NBBY): Define if not defined. + +2003-08-12 Nicholas Wourms <nwourms@netscape.net> + + * include/sys/param.h (setbit): Add new bitmap related macro. + (clrbit): Likewise. + (isset): Likewise. + (isclr): Likewise. + (howmany): Add new counting/rounding macro. + (rounddown): Likewise. + (roundup): Likewise. + (roundup2): Likewise. + (powerof2): Likewise + (MIN): Add macro for calculating min. + (MAX): Add macro for calculating max. + 2003-08-09 Christopher Faylor <cgf@redhat.com> * include/cygwin/version.h: Bump DLL minor number to 3. diff --git a/winsup/cygwin/include/sys/param.h b/winsup/cygwin/include/sys/param.h index 5469cc70b..811b5ee56 100644 --- a/winsup/cygwin/include/sys/param.h +++ b/winsup/cygwin/include/sys/param.h @@ -53,4 +53,27 @@ #define NULL 0L #endif +#ifndef NBBY +#define NBBY 8 +#endif + +/* Bit map related macros. */ +#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) +#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) +#define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) +#define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) + +/* Macros for counting and rounding. */ +#ifndef howmany +#define howmany(x, y) (((x)+((y)-1))/(y)) +#endif +#define rounddown(x, y) (((x)/(y))*(y)) +#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */ +#define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */ +#define powerof2(x) ((((x)-1)&(x))==0) + +/* Macros for min/max. */ +#define MIN(a,b) (((a)<(b))?(a):(b)) +#define MAX(a,b) (((a)>(b))?(a):(b)) + #endif |