correct dot product in example

Peter Brady · ThePhD · commit 62a831cda72c · 2020-06-11T06:37:56.000-04:00
diff --git a/examples/source/usertype_special_functions.cpp b/examples/source/usertype_special_functions.cpp
@@ -17,7 +17,7 @@ struct vec {
 };
 
 double dot(const vec& left, const vec& right) {
-	return left.x * right.x + left.x * right.x;
+	return left.x * right.x + left.y * right.y;
 }
 
 vec operator+(const vec& left, const vec& right) {

Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ struct vec {`
`17`	`17`	`};`
`18`	`18`
`19`	`19`	`double dot(const vec& left, const vec& right) {`
`20`		`- return left.x * right.x + left.x * right.x;`
	`20`	`+ return left.x * right.x + left.y * right.y;`
`21`	`21`	`}`
`22`	`22`
`23`	`23`	`vec operator+(const vec& left, const vec& right) {`