Determine the output precision for real numbers from

std::numeric_limits.


git-svn-id: http://svn.cactuscode.org/arrangements/CactusUtils/Formaline/trunk@88 83718e91-0e4f-0410-abf4-91180603181f

1 files changed, 3 insertions, 10 deletions

diff --git a/src/portal.cc b/src/portal.cc
index 83e26fb..a4d3606 100644
--- a/src/portal.cc
+++ b/src/portal.cc
@@ -9,6 +9,7 @@
 #include <fstream>
 #include <iomanip>
 #include <iostream>
+#include <limits>
 #include <string>
 #include <sstream>
 
@@ -382,16 +383,8 @@ namespace Formaline
   {
     assert (key);
     
-#if defined CCTK_REAL_PRECISION_4
-    int const prec = 6;
-#elif defined CCTK_REAL_PRECISION_8
-    int const prec = 15;
-#elif defined CCTK_REAL_PRECISION_16
-    int const prec = 30;
-#else
-    int const prec = 15;
-#endif
-  
+    int const prec = numeric_limits<CCTK_REAL>::digits10;
+    
     ostringstream keybuf;
     keybuf << key;
     ostringstream valuebuf;