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| author | Ulrich Drepper <drepper@redhat.com> | 2010-04-08 15:32:51 -0700 |
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| committer | Ulrich Drepper <drepper@redhat.com> | 2010-04-08 15:32:51 -0700 |
| commit | 88e236a627d7195a938bce0b7cde92c2da2abedf (patch) | |
| tree | c0b7a83831e02dd9a093edfb57ffddcd7f6129e6 /math/s_cprojf.c | |
| parent | 5e4295fb58a41f27e5158746deb8e40421d2e67b (diff) | |
| download | glibc-88e236a627d7195a938bce0b7cde92c2da2abedf.zip glibc-88e236a627d7195a938bce0b7cde92c2da2abedf.tar.gz glibc-88e236a627d7195a938bce0b7cde92c2da2abedf.tar.bz2 | |
Fix cproj implmentation.
Diffstat (limited to 'math/s_cprojf.c')
| -rw-r--r-- | math/s_cprojf.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/math/s_cprojf.c b/math/s_cprojf.c index 83df13c..e7eacaf 100644 --- a/math/s_cprojf.c +++ b/math/s_cprojf.c @@ -1,5 +1,5 @@ /* Compute projection of complex float value to Riemann sphere. - Copyright (C) 1997, 1999 Free Software Foundation, Inc. + Copyright (C) 1997, 1999, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -25,24 +25,19 @@ __complex__ float __cprojf (__complex__ float x) { - __complex__ float res; - if (isnan (__real__ x) && isnan (__imag__ x)) return x; else if (!isfinite (__real__ x) || !isfinite (__imag__ x)) { + __complex__ float res; + __real__ res = INFINITY; __imag__ res = __copysignf (0.0, __imag__ x); - } - else - { - float den = __real__ x * __real__ x + __imag__ x * __imag__ x + 1.0; - __real__ res = (2.0 * __real__ x) / den; - __imag__ res = (2.0 * __imag__ x) / den; + return res; } - return res; + return x; } #ifndef __cprojf weak_alias (__cprojf, cprojf) |