--- /usr/local/include/boost/multiprecision/mpfr.hpp	2017-09-27 17:11:38.437727315 +0200
+++ /usr/local/include/boost/multiprecision/mpfr_original_Sep_17_2017.hpp	2017-09-27 17:11:17.693212714 +0200
@@ -273,7 +273,7 @@
                   bool round_up = false;
                   while(ps[i] != 0)
                   {
-                     if(ps[i++] != '0')
+                     if(ps[i] != '0')
                      {
                         round_up = true;
                         break;