double w;
double c;
- assert(!(len&1)); //the optimization in r11881 does not support odd len
- //if someone wants odd len extend the change in r11881
+ /* The optimization in commit fa4ed8c does not support odd len.
+ * If someone wants odd len extend that change. */
+ assert(!(len & 1));
n2 = (len >> 1);
c = 2.0 / (len - 1.0);