usr/src/lib/libc/stdio/floatio.h

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)floatio.h   5.1 (Berkeley) %G%
 */

/*
 * 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