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Diffstat (limited to 'newlib/libm/mathfp/s_sine.c')
-rw-r--r--newlib/libm/mathfp/s_sine.c166
1 files changed, 0 insertions, 166 deletions
diff --git a/newlib/libm/mathfp/s_sine.c b/newlib/libm/mathfp/s_sine.c
deleted file mode 100644
index 9642f4a56..000000000
--- a/newlib/libm/mathfp/s_sine.c
+++ /dev/null
@@ -1,166 +0,0 @@
-
-/* @(#)z_sine.c 1.0 98/08/13 */
-/******************************************************************
- * The following routines are coded directly from the algorithms
- * and coefficients given in "Software Manual for the Elementary
- * Functions" by William J. Cody, Jr. and William Waite, Prentice
- * Hall, 1980.
- ******************************************************************/
-
-/*
-FUNCTION
- <<sin>>, <<cos>>, <<sine>>, <<sinf>>, <<cosf>>, <<sinef>>---sine or cosine
-INDEX
-sin
-INDEX
-sinf
-INDEX
-cos
-INDEX
-cosf
-ANSI_SYNOPSIS
- #include <math.h>
- double sin(double <[x]>);
- float sinf(float <[x]>);
- double cos(double <[x]>);
- float cosf(float <[x]>);
-
-TRAD_SYNOPSIS
- #include <math.h>
- double sin(<[x]>)
- double <[x]>;
- float sinf(<[x]>)
- float <[x]>;
-
- double cos(<[x]>)
- double <[x]>;
- float cosf(<[x]>)
- float <[x]>;
-
-DESCRIPTION
- <<sin>> and <<cos>> compute (respectively) the sine and cosine
- of the argument <[x]>. Angles are specified in radians.
-RETURNS
- The sine or cosine of <[x]> is returned.
-
-PORTABILITY
- <<sin>> and <<cos>> are ANSI C.
- <<sinf>> and <<cosf>> are extensions.
-
-QUICKREF
- sin ansi pure
- sinf - pure
-*/
-
-/******************************************************************
- * sine
- *
- * Input:
- * x - floating point value
- * cosine - indicates cosine value
- *
- * Output:
- * Sine of x.
- *
- * Description:
- * This routine calculates sines and cosines.
- *
- *****************************************************************/
-
-#include "fdlibm.h"
-#include "zmath.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-static const double HALF_PI = 1.57079632679489661923;
-static const double ONE_OVER_PI = 0.31830988618379067154;
-static const double r[] = { -0.16666666666666665052,
- 0.83333333333331650314e-02,
- -0.19841269841201840457e-03,
- 0.27557319210152756119e-05,
- -0.25052106798274584544e-07,
- 0.16058936490371589114e-09,
- -0.76429178068910467734e-12,
- 0.27204790957888846175e-14 };
-
-double
-_DEFUN (sine, (double, int),
- double x _AND
- int cosine)
-{
- int sgn, N;
- double y, XN, g, R, res;
- double YMAX = 210828714.0;
-
- switch (numtest (x))
- {
- case NAN:
- errno = EDOM;
- return (x);
- case INF:
- errno = EDOM;
- return (z_notanum.d);
- }
-
- /* Use sin and cos properties to ease computations. */
- if (cosine)
- {
- sgn = 1;
- y = fabs (x) + HALF_PI;
- }
- else
- {
- if (x < 0.0)
- {
- sgn = -1;
- y = -x;
- }
- else
- {
- sgn = 1;
- y = x;
- }
- }
-
- /* Check for values of y that will overflow here. */
- if (y > YMAX)
- {
- errno = ERANGE;
- return (x);
- }
-
- /* Calculate the exponent. */
- if (y < 0.0)
- N = (int) (y * ONE_OVER_PI - 0.5);
- else
- N = (int) (y * ONE_OVER_PI + 0.5);
- XN = (double) N;
-
- if (N & 1)
- sgn = -sgn;
-
- if (cosine)
- XN -= 0.5;
-
- y = fabs (x) - XN * __PI;
-
- if (-z_rooteps < y && y < z_rooteps)
- res = y;
-
- else
- {
- g = y * y;
-
- /* Calculate the Taylor series. */
- R = (((((((r[6] * g + r[5]) * g + r[4]) * g + r[3]) * g + r[2]) * g + r[1]) * g + r[0]) * g);
-
- /* Finally, compute the result. */
- res = y + y * R;
- }
-
- res *= sgn;
-
- return (res);
-}
-
-#endif /* _DOUBLE_IS_32BITS */