Minor improvement to code clarity (GH-9036)

rhettinger · web-flow · commit f3267144269b · 2018-09-02T13:34:21.000-07:00
Make it clear that the n==0 case is included. Otherwise, you have to know that max==0.0 whenever n==0.
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
@@ -2074,7 +2074,7 @@ vector_norm(Py_ssize_t n, double *vec, double max, int found_nan)
     if (found_nan) {
         return Py_NAN;
     }
-    if (max == 0.0 || n == 1) {
+    if (max == 0.0 || n <= 1) {
         return max;
     }
     for (i=0 ; i < n ; i++) {

Original file line number	Diff line number	Diff line change
`@@ -2074,7 +2074,7 @@ vector_norm(Py_ssize_t n, double *vec, double max, int found_nan)`
`2074`	`2074`	`if (found_nan) {`
`2075`	`2075`	`return Py_NAN;`
`2076`	`2076`	`}`
`2077`		`- if (max == 0.0 \|\| n == 1) {`
	`2077`	`+ if (max == 0.0 \|\| n <= 1) {`
`2078`	`2078`	`return max;`
`2079`	`2079`	`}`
`2080`	`2080`	`for (i=0 ; i < n ; i++) {`