fix string construction

BillyDonahue · BillyDonahue · commit aa1b3836667d · 2018-05-13T18:28:05.000-04:00
diff --git a/src/lib_json/json_writer.cpp b/src/lib_json/json_writer.cpp
@@ -137,7 +137,7 @@ JSONCPP_STRING valueToString(double value, bool useSpecialFloats, unsigned int p
     return reps[useSpecialFloats ? 0 : 1][isnan(value) ? 0 : (value < 0) ? 1 : 2];
   }
 
-  JSONCPP_STRING buffer(36);
+  JSONCPP_STRING buffer(size_t(36), '\0');
   while (true) {
       int len = snprintf(&*buffer.begin(), buffer.size(),
                          (precisionType == PrecisionType::significantDigits) ? "%.*g" : "%.*f",

Original file line number	Diff line number	Diff line change
`@@ -137,7 +137,7 @@ JSONCPP_STRING valueToString(double value, bool useSpecialFloats, unsigned int p`
`137`	`137`	`return reps[useSpecialFloats ? 0 : 1][isnan(value) ? 0 : (value < 0) ? 1 : 2];`
`138`	`138`	`}`
`139`	`139`
`140`		`- JSONCPP_STRING buffer(36);`
	`140`	`+ JSONCPP_STRING buffer(size_t(36), '\0');`
`141`	`141`	`while (true) {`
`142`	`142`	`int len = snprintf(&*buffer.begin(), buffer.size(),`
`143`	`143`	`(precisionType == PrecisionType::significantDigits) ? "%.g" : "%.f",`