From cad9ed8e13b1b5e7448f41a71837d0e52ca0ad42 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Fri, 13 Jan 2012 02:49:10 +0000
Subject: STM32 fixes for F4 32-bit timers

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4300 42af7a65-404d-4744-a932-0658087f49c3
---
 nuttx/lib/stdio/lib_libvsprintf.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'nuttx/lib')

diff --git a/nuttx/lib/stdio/lib_libvsprintf.c b/nuttx/lib/stdio/lib_libvsprintf.c
index 3bc112e92..341c055c6 100644
--- a/nuttx/lib/stdio/lib_libvsprintf.c
+++ b/nuttx/lib/stdio/lib_libvsprintf.c
@@ -529,6 +529,21 @@ static int getusize(uint8_t fmt, uint8_t flags, unsigned int n)
   utoascii(&nulloutstream, fmt, flags, n);
   return nulloutstream.nput;
 }
+
+/****************************************************************************
+ * Name: getdblsize
+ ****************************************************************************/
+
+#ifdef CONFIG_LIBC_FLOATINGPOINT
+static int getdblsize(uint8_t fmt, int trunc, uint8_t flags, double n)
+{
+  struct lib_outstream_s nulloutstream;
+  lib_nulloutstream(&nulloutstream);
+
+  lib_dtoa(&nulloutstream, fmt, trunc, flags, n);
+  return nulloutstream.nput;
+}
+#endif
 #endif /* CONFIG_NOPRINTF_FIELDWIDTH */
 
 #ifdef CONFIG_LONG_IS_NOT_INT
@@ -1535,9 +1550,30 @@ int lib_vsprintf(FAR struct lib_outstream_s *obj, FAR const char *src, va_list a
       else if (strchr("eEfgG", FMT_CHAR))
         {
           double dblval = va_arg(ap, double);
+
+#ifndef CONFIG_NOPRINTF_FIELDWIDTH
+          int dblsize;
+
+          /* Get the width of the output */
+
+          dblsize = getdblsize(FMT_CHAR, trunc, flags, dblval);
+
+          /* Perform left field justification actions */
+
+          prejustify(obj, fmt, flags, width, dblsize);
+#endif
+
+          /* Output the number */
+
           lib_dtoa(obj, FMT_CHAR, trunc, flags, dblval);
+
+#ifndef CONFIG_NOPRINTF_FIELDWIDTH
+          /* Perform right field justification actions */
+
+          postjustify(obj, fmt, flags, width, dblsize);
         }
 #endif
+#endif /* CONFIG_LIBC_FLOATINGPOINT */
     }
 
   return obj->nput;
-- 
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