add octa::clamp

2015-04-26 18:45:10 +01:00 · 2015-04-26 18:45:10 +01:00 · b37921ee93
parent 0245db3fec
commit b37921ee93
1 changed files with 12 additions and 0 deletions
--- a/octa/algorithm.h
+++ b/octa/algorithm.h
@ -206,6 +206,18 @@ namespace octa {
        return max_element(il.range(), compare).first();
    }

+    /* clamp */
+
+    template<typename T, typename U>
+    inline T clamp(const T &v, const U &lo, const U &hi) {
+        return max(T(lo), min(v, T(hi)));
+    }
+
+    template<typename T, typename U, typename C>
+    inline T clamp(const T &v, const U &lo, const U &hi, C compare) {
+        return max(T(lo), min(v, T(hi), compare), compare);
+    }
+
    /* algos that don't change the range */

    template<typename R, typename F>