kc3-lang/gnulib/lib/trigl.h

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• Hash : 32a72f45
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  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• lib/trigl.h

• /* Declarations for sinl, cosl, tanl internal functions.  -*- coding: utf-8 -*-
     Contributed by Paolo Bonzini
  
     Copyright 2002-2003, 2009-2023 Free Software Foundation, Inc.
  
     This file is part of gnulib.
  
     This file is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as
     published by the Free Software Foundation, either version 3 of the
     License, or (at your option) any later version.
  
     This file 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 Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public License
     along with this program.  If not, see <https://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);
  

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