Add a CLIP macro for culling a value between a min and max value.

git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@3029 4a71c877-e1ca-e34f-864e-861f7616d084
2007-12-10 18:36:07 +00:00 · 2007-12-10 18:36:07 +00:00 · 2506b69e1f
parent 78a5853309
commit 2506b69e1f
1 changed files with 5 additions and 0 deletions
--- a/lib/framework/macros.h
+++ b/lib/framework/macros.h
@ -29,6 +29,11 @@

 #define ABSDIF(a,b) ((a)>(b) ? (a)-(b) : (b)-(a))

+#define CLIP(val, min, max) do                                                \
+{                                                                             \
+    if ((val) < (min)) (val) = (min);                                         \
+    else if ((val) > (max)) (val) = (max);                                    \
+} while(0)

 /*
   defines for ONEINX