From 67c52ae7738b2ac3b4bd35af6cf9c65e05f84cd8 Mon Sep 17 00:00:00 2001
From: Enrico Forestieri <forenr@lyx.org>
Date: Fri, 26 Jun 2015 22:49:17 +0200
Subject: [PATCH] Amend c9d9309c

It suffices taking the log of the absolute value.
---
 src/support/lstrings.cpp | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/src/support/lstrings.cpp b/src/support/lstrings.cpp
index 6faf1a4fc3..3b903c83de 100644
--- a/src/support/lstrings.cpp
+++ b/src/support/lstrings.cpp
@@ -1408,10 +1408,7 @@ std::string formatFPNumber(double x)
 	// Prevent outputs of 23.4200000000000017 but output small numbers
 	// with at least 6 significant digits.
 	bool const neg = x < 0;
-	// Treat all doubles as positive for the formatting
-	if (neg)
-		x = -x;
-	double const logarithm = log10(x);
+	double const logarithm = log10(abs(x));
 	os << std::setprecision(max(6 - static_cast<int>(round(logarithm)), 0)) << x;
 	string result = os.str();
 	if (result.find('.') != string::npos) {
@@ -1419,9 +1416,6 @@ std::string formatFPNumber(double x)
 		if (result[result.length()-1] == '.')
 			result = rtrim(result, ".");
 	}
-	// Re-add negativity
-	if (neg)
-		result = "-" + result;
 	return result;
 }