Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / lang / w_atan2.c

diff --git a/libjava/java/lang/w_atan2.c b/libjava/java/lang/w_atan2.c
deleted file mode 100644 (file)
index 91742c7..0000000
--- a/libjava/java/lang/w_atan2.c
+++ /dev/null
@@ -1,117 +0,0 @@
-
-/* @(#)w_atan2.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- *
- */
-
-/*
-FUNCTION
-        <<atan2>>, <<atan2f>>---arc tangent of y/x
-
-INDEX
-   atan2
-INDEX
-   atan2f
-
-ANSI_SYNOPSIS
-        #include <math.h>
-        double atan2(double <[y]>,double <[x]>);
-        float atan2f(float <[y]>,float <[x]>);
-
-TRAD_SYNOPSIS
-        #include <math.h>
-        double atan2(<[y]>,<[x]>);
-        double <[y]>;
-        double <[x]>;
-
-        float atan2f(<[y]>,<[x]>);
-        float <[y]>;
-        float <[x]>;
-
-DESCRIPTION
-
-<<atan2>> computes the inverse tangent (arc tangent) of <[y]>/<[x]>. 
-<<atan2>> produces the correct result even for angles near 
-@ifinfo
-pi/2 or -pi/2 
-@end ifinfo
-@tex
-$\pi/2$ or $-\pi/2$
-@end tex
-(that is, when <[x]> is near 0). 
-
-<<atan2f>> is identical to <<atan2>>, save that it takes and returns
-<<float>>. 
-
-RETURNS
-<<atan2>> and <<atan2f>> return a value in radians, in the range of 
-@ifinfo
--pi to pi.
-@end ifinfo
-@tex
-$-\pi$ to $\pi$.
-@end tex
-
-If both <[x]> and <[y]> are 0.0, <<atan2>> causes a <<DOMAIN>> error.
-
-You can modify error handling for these functions using <<matherr>>.
-
-PORTABILITY
-<<atan2>> is ANSI C.  <<atan2f>> is an extension.
-
-
-*/
-
-/* 
- * wrapper atan2(y,x)
- */
-
-#include "fdlibm.h"
-#include <errno.h>
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
-       double atan2(double y, double x)        /* wrapper atan2 */
-#else
-       double atan2(y,x)                       /* wrapper atan2 */
-       double y,x;
-#endif
-{
-#ifdef _IEEE_LIBM
-       return __ieee754_atan2(y,x);
-#else
-       double z;
-       struct exception exc;
-       z = __ieee754_atan2(y,x);
-       if(_LIB_VERSION == _IEEE_||isnan(x)||isnan(y)) return z;
-       if(x==0.0&&y==0.0) {
-           /* atan2(+-0,+-0) */
-           exc.arg1 = y;
-           exc.arg2 = x;
-           exc.type = DOMAIN;
-           exc.name = "atan2";
-           exc.err = 0;
-           exc.retval = 0.0;
-           if(_LIB_VERSION == _POSIX_)
-              errno = EDOM;
-           else if (!matherr(&exc)) {
-              errno = EDOM;
-           }
-           if (exc.err != 0)
-              errno = exc.err;
-           return exc.retval; 
-       } else
-           return z;
-#endif
-}
-
-#endif /* defined(_DOUBLE_IS_32BITS) */