+++ /dev/null
-/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
- Written by Ben Pfaff <blp@gnu.org>.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
-
-#if !math_misc_h
-#define math_misc_h 1
-
-#include <float.h>
-#include <math.h>
-
-#define EPSILON (10 * DBL_EPSILON)
-
-/* HUGE_VAL is traditionally defined as positive infinity, or
- alternatively, DBL_MAX. */
-#if !HAVE_ISINF
-#define isinf(X) (fabs (X) == HUGE_VAL)
-#endif
-
-/* A Not a Number is not equal to itself. */
-#if !HAVE_ISNAN
-#define isnan(X) ((X) != (X))
-#endif
-
-/* Finite numbers are not infinities or NaNs. */
-#if !HAVE_FINITE
-#define finite(X) (!isinf (X) && !isnan (X))
-#elif HAVE_IEEEFP_H
-#include <ieeefp.h> /* Declares finite() under Solaris. */
-#endif
-
-#ifndef min
-#define min(A, B) ((A) < (B) ? (A) : (B))
-#endif
-
-#ifndef max
-#define max(A, B) ((A) > (B) ? (A) : (B))
-#endif
-
-/* Clamps A to be between B and C. */
-#define range(A, B, C) ((A) < (B) ? (B) : ((A) > (C) ? (C) : (A)))
-
-/* Divides nonnegative X by positive Y, rounding up. */
-#define DIV_RND_UP(X, Y) (((X) + ((Y) - 1)) / (Y))
-
-/* Returns nonnegative difference between {nonnegative X} and {the
- least multiple of positive Y greater than or equal to X}. */
-#define REM_RND_UP(X, Y) ((X) % (Y) ? (Y) - (X) % (Y) : 0)
-
-/* Rounds X up to the next multiple of Y. */
-#define ROUND_UP(X, Y) (((X) + ((Y) - 1)) / (Y) * (Y))
-
-/* Rounds X down to the previous multiple of Y. */
-#define ROUND_DOWN(X, Y) ((X) / (Y) * (Y))
-
-int intlog10 (unsigned);
-
-/* Returns the square of X. */
-static inline double
-pow2 (double x)
-{
- return x * x;
-}
-
-/* Returns the cube of X. */
-static inline double
-pow3 (double x)
-{
- return x * x * x;
-}
-
-/* Returns the fourth power of X. */
-static inline double
-pow4 (double x)
-{
- double y = x * x;
- y *= y;
- return y;
-}
-
-#endif /* math/misc.h */