--- Libc/Libc-262/stdio/floatio.h
+++ Libc/Libc-498/stdio/floatio.h
@@ -1,25 +1,4 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
+/*-
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -53,13 +32,27 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
+ *
+ *	@(#)floatio.h	8.1 (Berkeley) 6/4/93
+ * $FreeBSD: src/lib/libc/stdio/floatio.h,v 1.5 2004/01/18 08:28:47 das Exp $
  */
 
 /*
  * Floating point scanf/printf (input/output) definitions.
  */
 
-/* 11-bit exponent (VAX G floating point) is 308 decimal digits */
-#define	MAXEXP		308
-/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */
-#define	MAXFRACT	39
+/*
+ * MAXEXPDIG is the maximum number of decimal digits needed to store a
+ * floating point exponent in the largest supported format.  It should
+ * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point
+ * conversions are supported, ceil(log10(LDBL_MAX_EXP)).  But since it
+ * is presently never greater than 5 in practice, we fudge it.
+ */
+#define	MAXEXPDIG	6
+#if LDBL_MAX_EXP > 999999
+#error "floating point buffers too small"
+#endif
+
+char *__hdtoa(double, const char *, int, int *, int *, char **);
+char *__hldtoa(long double, const char *, int, int *, int *, char **);
+char *__ldtoa(long double *, int, int, int *, int *, char **);