diff options
Diffstat (limited to 'math')
| -rw-r--r-- | math/libm-test.inc | 4 | ||||
| -rw-r--r-- | math/s_cproj.c | 17 | ||||
| -rw-r--r-- | math/s_cprojf.c | 15 | ||||
| -rw-r--r-- | math/s_cprojl.c | 16 |
4 files changed, 18 insertions, 34 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index 260d3ec665..6650b889c5 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -1,4 +1,4 @@ -/* Copyright (C) 1997-2006, 2007, 2009 Free Software Foundation, Inc. +/* Copyright (C) 1997-2006, 2007, 2009, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 1997. @@ -2087,7 +2087,7 @@ cproj_test (void) TEST_c_c (cproj, minus_infty, minus_infty, plus_infty, minus_zero); TEST_c_c (cproj, 1.0, 0.0, 1.0, 0.0); - TEST_c_c (cproj, 2.0, 3.0, 0.2857142857142857142857142857142857L, 0.42857142857142857142857142857142855L); + TEST_c_c (cproj, 2.0, 3.0, 2.0, 3.0); END (cproj, complex); } diff --git a/math/s_cproj.c b/math/s_cproj.c index 8e7ca41df8..90e5ebaa4e 100644 --- a/math/s_cproj.c +++ b/math/s_cproj.c @@ -1,5 +1,5 @@ /* Compute projection of complex double 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__ double __cproj (__complex__ double x) { - __complex__ double res; - if (isnan (__real__ x) && isnan (__imag__ x)) return x; else if (!isfinite (__real__ x) || !isfinite (__imag__ x)) { + __complex__ double res; + __real__ res = INFINITY; __imag__ res = __copysign (0.0, __imag__ x); - } - else - { - double 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; } weak_alias (__cproj, cproj) #ifdef NO_LONG_DOUBLE diff --git a/math/s_cprojf.c b/math/s_cprojf.c index 83df13cfa9..e7eacafbaf 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) diff --git a/math/s_cprojl.c b/math/s_cprojl.c index c70cdc47db..19c17a82bd 100644 --- a/math/s_cprojl.c +++ b/math/s_cprojl.c @@ -1,5 +1,5 @@ /* Compute projection of complex long double 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 +25,18 @@ __complex__ long double __cprojl (__complex__ long double x) { - __complex__ long double res; - if (isnan (__real__ x) && isnan (__imag__ x)) return x; else if (!isfinite (__real__ x) || !isfinite (__imag__ x)) { + __complex__ long double res; + __real__ res = INFINITY; __imag__ res = __copysignl (0.0, __imag__ x); - } - else - { - long double 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; } weak_alias (__cprojl, cprojl) |