123456789101112131415161718192021222324252627282930313233 |
- /*
- * ====================================================
- * 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.
- * ====================================================
- */
- /*
- * wrapper atan2(y,x)
- */
- #include "math.h"
- #include "math_private.h"
- double atan2(double y, double x) /* wrapper atan2 */
- {
- #ifdef _IEEE_LIBM
- return __ieee754_atan2(y,x);
- #else
- double z;
- z = __ieee754_atan2(y,x);
- if(_LIB_VERSION == _IEEE_||isnan(x)||isnan(y)) return z;
- if(x==0.0&&y==0.0) {
- return __kernel_standard(y,x,3); /* atan2(+-0,+-0) */
- } else
- return z;
- #endif
- }
- libm_hidden_def(atan2)
|