diff options
Diffstat (limited to 'common/util.c')
-rw-r--r-- | common/util.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/common/util.c b/common/util.c new file mode 100644 index 00000000..ed6d033f --- /dev/null +++ b/common/util.c | |||
@@ -0,0 +1,15 @@ | |||
1 | #include "util.h" | ||
2 | |||
3 | int wrap(int i, int max) { | ||
4 | return ((i % max) + max) % max; | ||
5 | } | ||
6 | |||
7 | int numlen(int n) { | ||
8 | if (n >= 1000000) return 7; | ||
9 | if (n >= 100000) return 6; | ||
10 | if (n >= 10000) return 5; | ||
11 | if (n >= 1000) return 4; | ||
12 | if (n >= 100) return 3; | ||
13 | if (n >= 10) return 2; | ||
14 | return 1; | ||
15 | } | ||