arprec.patch


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--- a/arprec-2.2.18/src/write.cpp
+++ b/arprec-2.2.18/src/write.cpp
@@ -196,6 +196,6 @@ bool mp_real::write(ostream &s, int precision, int width, int expn_width,
 
   string str = to_string(precision, width, expn_width, 
       fmt, showpos, uppercase, fill);
-  return (s << str) != 0;
+  return static_cast<bool>(s << str);
 }