crypto: Use math.h definitions of isnan and isinf

Unless you specify C++11, std::isnan and std::isinf are not guaranteed to be available. Instead, just use the math.h functions for now. PR-URL: #19196 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Yihong Wang <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: jer-gentoo

src/node_crypto.cc

@@ -36,9 +36,9 @@
 #include"v8.h"
 
 #include<algorithm>
+#include<cmath>
 #include<errno.h>
 #include<limits.h>// INT_MAX
-#include<math.h>
 #include<stdlib.h>
 #include<string.h>
 #include<vector>