[BZ 4858]

	* stdio-common/printf_fp.c (___printf_fp): Fix special case of
	#.0g and value rounded to 1.0.
	* stdio-common/tfformat.c (sprint_doubles): Add two new tests.

ChangeLog

@@ -1,3 +1,10 @@
+2007-07-28  Ulrich Drepper  <drepper@redhat.com>
+
+	[BZ 4858]
+	* stdio-common/printf_fp.c (___printf_fp): Fix special case of
+	#.0g and value rounded to 1.0.
+	* stdio-common/tfformat.c (sprint_doubles): Add two new tests.
+
 2007-07-26  Jakub Jelinek  <jakub@redhat.com>
 
 	* locale/programs/ld-monetary.c (monetary_finish): Avoid range check

stdio-common/printf_fp.c

@@ -986,7 +986,9 @@ ___printf_fp (FILE *fp,
 	    if (*wtp != decimalwc)
 	      /* Round up.  */
 	      (*wtp)++;
-	    else if (__builtin_expect (spec == 'g' && type == 'f' && info->alt,
+	    else if (__builtin_expect (spec == 'g' && type == 'f' && info->alt
+				       && wtp == wstartp + 1
+				       && wstartp[0] == L'0',
 				       0))
 	      /* This is a special case: the rounded number is 1.0,
 		 the format is 'g' or 'G', and the alternative format

stdio-common/tfformat.c

@@ -4024,6 +4024,9 @@ sprint_double_type sprint_doubles[] =
   {__LINE__, 1.0,			"1.000000e+00", "%e"},
   {__LINE__, .9999999999999999,		"1.000000e+00", "%e"},
 
+  {__LINE__, 912.98,			"913.0", "%#.4g"},
+  {__LINE__, 50.999999,			"51.000", "%#.5g"},
+
   {0 }
 
 };