X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Ftextwriter.cpp;h=65f4870ea6e466816ee25d9dd40dbc550d00faa8;hb=19179a622c1de88de5ed7047643eec79f285bf2a;hp=0e5b6742653d80599809d645b77e1f91b9f60675;hpb=7df5e45c7f414f6a07681dc4ec2abb63b091a309;p=libs%2Fdatafile.git

diff --git a/source/textwriter.cpp b/source/textwriter.cpp
index 0e5b674..65f4870 100644
--- a/source/textwriter.cpp
+++ b/source/textwriter.cpp
@@ -9,9 +9,15 @@ namespace Msp {
 namespace DataFile {
 
 TextWriter::TextWriter(IO::Base &o):
-	WriterMode(o)
+	WriterMode(o),
+	float_format("%#.7g")
 { }
 
+void TextWriter::set_float_precision(unsigned fp)
+{
+	float_format = format("%%#.%dg", fp/4-1);
+}
+
 void TextWriter::write(const Statement &st)
 {
 	write_(st, 0);
@@ -32,7 +38,7 @@ void TextWriter::write_(const Statement &st, unsigned level)
 		else if(i->get_signature()==IntType::signature)
 			out.write(lexical_cast(i->get<IntType::Store>()));
 		else if(i->get_signature()==FloatType::signature)
-			out.write(format("%15g", (i->get<FloatType::Store>())));
+			out.write(format(float_format, i->get<FloatType::Store>()));
 		else if(i->get_signature()==SymbolType::signature)
 		{
 			string name = i->get<SymbolType::Store>().name;