Another try at fixing double-to-text conversion for testing

1 files changed, 8 insertions, 2 deletions

diff --git a/src/value.cc b/src/value.cc
index c9440ae..47fac1e 100644
--- a/src/value.cc
+++ b/src/value.cc
@@ -368,11 +368,17 @@ std::string Value::toString() const
 		// across platforms for testing purposes.
 	{
 		std::stringstream tmp;
-		tmp.precision(16);
+		tmp.precision(12);
 		tmp.setf(std::ios_base::fixed);
 		tmp << this->num;
 		std::string tmpstr = tmp.str();
-		if (tmpstr.size() > 16) tmpstr.erase(16);
+		size_t endpos = tmpstr.find_last_not_of('0');
+		if (endpos >= 0 && tmpstr[endpos] == '.') endpos--;
+		tmpstr = tmpstr.substr(0, endpos+1);
+		size_t dotpos = tmpstr.find('.');
+		if (dotpos != std::string::npos) {
+			if (tmpstr.size() - dotpos > 12) tmpstr.erase(dotpos + 12);
+		}
 		stream << tmpstr;
 	}
 #else