From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 1 Dec 2012 09:45:04 +0000 (+0200)
Subject: Use an Fmt object to store the float format
X-Git-Url: http://git.tdb.fi/?p=libs%2Fdatafile.git;a=commitdiff_plain;h=e93ac3d7eb94842161f0669cf78b4e2173dc0488

Use an Fmt object to store the float format
---

diff --git a/source/textwriter.cpp b/source/textwriter.cpp
index c870ba0..f37b733 100644
--- a/source/textwriter.cpp
+++ b/source/textwriter.cpp
@@ -10,13 +10,14 @@ namespace Msp {
 namespace DataFile {
 
 TextWriter::TextWriter(Output &o):
-	WriterMode(o),
-	float_format("%#.7g")
-{ }
+	WriterMode(o)
+{
+	float_format.showpoint().precision(7);
+}
 
 void TextWriter::set_float_precision(unsigned fp)
 {
-	float_format = format("%%#.%dg", fp/4-1);
+	float_format.precision(fp/4-1);
 }
 
 void TextWriter::write(const Statement &st)
@@ -39,7 +40,7 @@ void TextWriter::write_(const Statement &st, unsigned level)
 		else if(i->get_signature()==IntType::signature)
 			out.write(lexical_cast<string>(i->get<IntType::Store>()));
 		else if(i->get_signature()==FloatType::signature)
-			out.write(format(float_format, i->get<FloatType::Store>()));
+			out.write(lexical_cast<string>(i->get<FloatType::Store>(), float_format));
 		else if(i->get_signature()==SymbolType::signature)
 		{
 			string name = i->get<SymbolType::Store>().name;
diff --git a/source/textwriter.h b/source/textwriter.h
index e265d2f..fef4379 100644
--- a/source/textwriter.h
+++ b/source/textwriter.h
@@ -9,7 +9,7 @@ namespace DataFile {
 class TextWriter: public WriterMode
 {
 private:
-	std::string float_format;
+	Fmt float_format;
 
 public:
 	TextWriter(Output &o);