bug in %F

[James Antill]

 I submitted a bug a few months ago now, using glibcbug about %F being
broken in glibc ... having a look at current CVS it doesn't appear to
have been fixed. Are glibcbug reports getting lost ? Is it better to
just post them here ?

 Anyway this program demonstrates the bug...

#define _GNU_SOURCE 1

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
  printf("%f\n", 4444.88888888);
  printf("%F\n", 4444.88888888);

  printf("%10.10f\n", 4444.88888888);
  printf("%10.10F\n", 4444.88888888);

  printf("%4.4f\n", 4444.88888888);
  printf("%4.4F\n", 4444.88888888);

  printf("%2.f\n", 4444.88888888);
  printf("%2.F\n", 4444.88888888);

  exit (EXIT_SUCCESS);
}


...%f and %F should only differ in the case of infinity etc. I'm
pretty sure the following patch fixes it (but it's untested)...

--- stdio-common/printf_fp.c-orig	Fri Mar  8 11:49:03 2002
+++ stdio-common/printf_fp.c	Fri Mar  8 11:53:29 2002
@@ -806,7 +806,7 @@
 	dig_max = INT_MAX;		/* Unlimited.  */
 	significant = 1;		/* Does not matter here.  */
       }
-    else if (info->spec == 'f')
+    else if (_tolower (info->spec) == 'f')
       {
 	type = 'f';
 	fracdig_min = fracdig_max = info->prec < 0 ? 6 : info->prec;


...more info. was in my original report but I can't access the
database to get it out.

-- 
# James Antill -- james@and.org
:0:
* ^From: .*james@and\.org
/dev/null