/* Declarations for sinl, cosl, tanl internal functions
   Contributed by Paolo Bonzini

   Copyright 2002, 2003, 2009, 2010 Free Software Foundation, Inc.

   This file is part of gnulib.

   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 3 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, see <http://www.gnu.org/licenses/>.  */

/* Decompose x into x = k * π/2 + r
   where k is an integer and abs(r) <= π/4.
   Store r in y[0] and y[1] (main part in y[0], small additional part in
   y[1], r = y[0] + y[1]).
   Return k.  */
extern int ieee754_rem_pio2l (long double x, long double *y);

/* Compute and return sinl (x + y), where x is the main part and y is the
   small additional part of a floating-point number.
   iy is 0 when y is known to be 0.0, otherwise iy is 1.  */
extern long double kernel_sinl (long double x, long double y, int iy);

/* Compute and return cosl (x + y), where x is the main part and y is the
   small additional part of a floating-point number.  */
extern long double kernel_cosl (long double x, long double y);