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-rw-r--r--misc/efgcvt.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/misc/efgcvt.c b/misc/efgcvt.c
index 95b0b0d570..e8a05176e6 100644
--- a/misc/efgcvt.c
+++ b/misc/efgcvt.c
@@ -1,5 +1,5 @@
 /* [efg]cvt -- compatibility functions for floating point formatting.
-Copyright (C) 1995 Free Software Foundation, Inc.
+Copyright (C) 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
 The GNU C Library is free software; you can redistribute it and/or
@@ -19,13 +19,16 @@ Cambridge, MA 02139, USA.  */
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <float.h>
+
+#define MAXDIG (DBL_DIG + DBL_MAX_10_EXP)
 
 char *
 fcvt (value, ndigit, decpt, sign)
      double value;
      int ndigit, *decpt, *sign;
 {
-  static char buf[100];
+  static char buf[MAXDIG];
 
   (void) fcvt_r (value, ndigit, decpt, sign, buf, sizeof buf);
 
@@ -37,7 +40,7 @@ ecvt (value, ndigit, decpt, sign)
      double value;
      int ndigit, *decpt, *sign;
 {
-  static char buf[100];
+  static char buf[MAXDIG];
 
   (void) ecvt_r (value, ndigit, decpt, sign, buf, sizeof buf);