diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2008-01-27 11:37:44 +0100 |
|---|---|---|
| committer | Tobias Klauser <tklauser@xenon.tklauser.home> | 2008-01-27 11:37:44 +0100 |
| commit | 7e0f021a9aec35fd8e6725e87e3313b101d26f5e (patch) | |
| tree | b1cacc4b24393f517aeb4610e9e1021f954307a8 /reference/C/CONTRIB/SNIP/bitarray.c | |
Initial import (2.0.2-6)2.0.2-6
Diffstat (limited to 'reference/C/CONTRIB/SNIP/bitarray.c')
| -rwxr-xr-x | reference/C/CONTRIB/SNIP/bitarray.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/SNIP/bitarray.c b/reference/C/CONTRIB/SNIP/bitarray.c new file mode 100755 index 0000000..3f09401 --- /dev/null +++ b/reference/C/CONTRIB/SNIP/bitarray.c @@ -0,0 +1,15 @@ +char set[(BITCOUNT + 7) / 8];
+
+int getbit(char *set, int number)
+{
+ set += number / 8;
+ return (*set & (1 << (number % 8))) != 0; /* 0 or 1 */
+}
+
+int setbit(char *set, int number, int value)
+{
+ set += number / 8;
+ if (value)
+ *set |= 1 << (number % 8); /* set bit */
+ else *set &= ~(1 << (number % 8)); /* clear bit */
+}
|