| /* e_hypotf.c -- float version of e_hypot.c. |
| * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
| */ |
| |
| /* |
| * ==================================================== |
| * 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. |
| * ==================================================== |
| */ |
| |
| #include <math.h> |
| #include <math_private.h> |
| |
| float |
| __ieee754_hypotf(float x, float y) |
| { |
| double d_x, d_y; |
| int32_t ha, hb; |
| |
| GET_FLOAT_WORD(ha,x); |
| ha &= 0x7fffffff; |
| GET_FLOAT_WORD(hb,y); |
| hb &= 0x7fffffff; |
| if (ha == 0x7f800000) |
| { |
| if (x == y) |
| return fabsf(y); |
| return fabsf(x); |
| } |
| else if (hb == 0x7f800000) |
| { |
| if (x == y) |
| return fabsf(x); |
| return fabsf(y); |
| } |
| else if (ha > 0x7f800000 || hb > 0x7f800000) |
| return fabsf(x) * fabsf(y); |
| else if (ha == 0) |
| return fabsf(y); |
| else if (hb == 0) |
| return fabsf(x); |
| |
| d_x = (double) x; |
| d_y = (double) y; |
| |
| return (float) __ieee754_sqrt(d_x * d_x + d_y * d_y); |
| } |
| strong_alias (__ieee754_hypotf, __hypotf_finite) |
