Use new Gnulib function dtoastr() to format short, accurate real numbers.

[pspp-builds.git] / src / data / csv-file-writer.c

diff --git a/src/data/csv-file-writer.c b/src/data/csv-file-writer.c
index 70568c3e1d4dfe35fc10857d0aaf6ee1fe654c72..11b7429cbb60c0b32b8692a29173a8219e420d33 100644 (file)
--- a/src/data/csv-file-writer.c
+++ b/src/data/csv-file-writer.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2010 Free Software Foundation, Inc.
+   Copyright (C) 2010, 2011 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -45,6 +45,8 @@
 #include "libpspp/message.h"
 #include "libpspp/str.h"
 
+#include "gl/ftoastr.h"
+#include "gl/minmax.h"
 #include "gl/unlocked-io.h"
 #include "gl/xalloc.h"
 
@@ -280,7 +282,7 @@ csv_write_var__ (struct csv_writer *w, const struct csv_var *cv,
     csv_output_format (w, cv, value);
   else
     {
-      char s[128];
+      char s[MAX (DBL_STRLEN_BOUND, 128)];
 
       switch (cv->format.type)
         {
@@ -306,7 +308,7 @@ csv_write_var__ (struct csv_writer *w, const struct csv_var *cv,
         case FMT_RBHEX:
         case FMT_WKDAY:
         case FMT_MONTH:
-          snprintf (s, sizeof s, "%.*g", DBL_DIG + 1, value->f);
+          dtoastr (s, sizeof s, 0, 0, value->f);
           if (w->opts.decimal != '.')
             {
               char *cp = strchr (s, '.');