helper for get sign of integer

2025-12-24 20:34:58 +00:00 · 2016-10-26 14:37:06 +03:00
parent a410b880b4
commit 4ac8eaa1c9
1 changed files with 11 additions and 0 deletions
--- a/include/cglm-util.h
+++ b/include/cglm-util.h
@@ -10,6 +10,17 @@

 #include "cglm-common.h"

+/*!
+ * @brief get sign of 32 bit integer as +1 or -1
+ *
+ * @param X integer value
+ */
+CGLM_INLINE
+int
+glm_sign(int val) {
+  return ((val >> 31) - (-val >> 31));
+}
+
 CGLM_INLINE
 float
 glm_rad(float deg) {