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authorCameron Cawley2019-10-03 22:10:00 +0100
committerDavid Turner2019-10-03 23:52:46 +0100
commit3cb6a84f035b40b4c4862719811a04e02afe2137 (patch)
tree7c2e51030829980ab7eec5a92afee3e4c50cde6b /common
parent9368323cdf182121577511b129f8d981c364a34b (diff)
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BLADERUNNER: Remove use of C99 math functions
Diffstat (limited to 'common')
-rw-r--r--common/math.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/common/math.h b/common/math.h
index 7b2ec6060e..2c62fce6d5 100644
--- a/common/math.h
+++ b/common/math.h
@@ -107,6 +107,20 @@ inline int intLog2(uint32 v) {
}
#endif
+// Round a number towards zero
+// Input and Output type can be different
+template<class InputT, class OutputT>
+inline OutputT trunc(InputT x) {
+ return (x > 0) ? floor(x) : ceil(x);
+}
+
+// Round a number towards zero
+// Input and Output type are the same
+template<class T>
+inline T trunc(T x) {
+ return trunc<T,T>(x);
+}
+
// Convert radians to degrees
// Input and Output type can be different
// Upconvert everything to floats