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author | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
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committer | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
commit | a6c1ed4716cf02626ea035beb6dd4a921642ba80 (patch) | |
tree | ef582c1b52819e27bdd16097ec03b69799d04ede /newlib/libm/math/w_atan2.c | |
parent | f6c9a624fa8a6878a7fb2b02f55e4990a20feb59 (diff) |
Use libc from agbcc instead of standalone newlib\nYou must have AGBCC commit 80d029caec189587f8b9294b6c8a5a489b8f5f88 in order to compile pmd_red.gbalibc
Diffstat (limited to 'newlib/libm/math/w_atan2.c')
-rw-r--r-- | newlib/libm/math/w_atan2.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/newlib/libm/math/w_atan2.c b/newlib/libm/math/w_atan2.c deleted file mode 100644 index 91742c7..0000000 --- a/newlib/libm/math/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) */ |