add alias to real part of quaternion

kvedala · kvedala · commit 0d791016053f · 2020-08-17T14:01:38.000-04:00
diff --git a/geometry/geometry_datatypes.h b/geometry/geometry_datatypes.h
@@ -59,7 +59,11 @@ typedef struct mat_3x3_
  */
 typedef struct quaternion_
 {
-    float w; /**< real part of quaternion */
+    union
+    {
+        float w;  /**< real part of quaternion */
+        float q0; /**< real part of quaternion */
+    };
     /**< dual part of quaternion */
     union
     {

Original file line number	Diff line number	Diff line change
`@@ -59,7 +59,11 @@ typedef struct mat_3x3_`
`59`	`59`	`*/`
`60`	`60`	`typedef struct quaternion_`
`61`	`61`	`{`
`62`		`- float w; /*< real part of quaternion /`
	`62`	`+ union`
	`63`	`+ {`
	`64`	`+ float w; /*< real part of quaternion /`
	`65`	`+ float q0; /*< real part of quaternion /`
	`66`	`+ };`
`63`	`67`	`/*< dual part of quaternion /`
`64`	`68`	`union`
`65`	`69`	`{`