glibc/sysdeps/generic/s_cexpf.c
Richard Henderson 1705f0a392 * Versions.def (libm): Add GLIBC_2.3.3.
* sysdeps/alpha/fpu/Versions: Add __c1_c*f and c*f to GLIBC_2.3.3. 
* sysdeps/alpha/fpu/cabsf.c, sysdeps/alpha/fpu/cargf.c, 
sysdeps/alpha/fpu/cfloat-compat.h, sysdeps/alpha/fpu/cimagf.c, 
sysdeps/alpha/fpu/conjf.c, sysdeps/alpha/fpu/crealf.c, 
sysdeps/alpha/fpu/s_cacosf.c, sysdeps/alpha/fpu/s_cacoshf.c, 
sysdeps/alpha/fpu/s_casinf.c, sysdeps/alpha/fpu/s_casinhf.c, 
sysdeps/alpha/fpu/s_catanf.c, sysdeps/alpha/fpu/s_catanhf.c, 
sysdeps/alpha/fpu/s_ccosf.c, sysdeps/alpha/fpu/s_ccoshf.c, 
sysdeps/alpha/fpu/s_cexpf.c, sysdeps/alpha/fpu/s_clog10f.c, 
sysdeps/alpha/fpu/s_clogf.c, sysdeps/alpha/fpu/s_cpowf.c, 
sysdeps/alpha/fpu/s_cprojf.c, sysdeps/alpha/fpu/s_csinf.c, 
sysdeps/alpha/fpu/s_csinhf.c, sysdeps/alpha/fpu/s_csqrtf.c, 
sysdeps/alpha/fpu/s_ctanf.c, sysdeps/alpha/fpu/s_ctanhf.c: New files. 
* sysdeps/alpha/fpu/bits/mathdef.h: Rename complex float 
functions for gcc 3.3.
	* sysdeps/generic/s_cacosf.c, sysdeps/generic/s_cacoshf.c,
	sysdeps/generic/s_casinf.c, sysdeps/generic/s_casinhf.c,
	sysdeps/generic/s_catanf.c, sysdeps/generic/s_catanhf.c,
	sysdeps/generic/s_ccosf.c, sysdeps/generic/s_ccoshf.c,
	sysdeps/generic/s_cexpf.c, sysdeps/generic/s_clog10f.c,
	sysdeps/generic/s_clogf.c, sysdeps/generic/s_cpowf.c,
	sysdeps/generic/s_cprojf.c, sysdeps/generic/s_csinf.c,
	sysdeps/generic/s_csinhf.c, sysdeps/generic/s_csqrtf.c,
	sysdeps/generic/s_ctanf.c, sysdeps/generic/s_ctanhf.c: Don't
	weak_alias if the function name has been #defined.

	* math/cabsf.c: Move ...
	* sysdeps/generic/cabsf.c: ... here.
	* math/cargf.c: Move ...
	* sysdeps/generic/cargf.c: ... here.
	* math/cimagf.c: Move ...
	* sysdeps/generic/cimagf.c: ... here.
	* math/conjf.c: Move ...
	* sysdeps/generic/conjf.c: ... here.
	* math/crealf.c: Move ...
	* sysdeps/generic/crealf.c: ... here.
2004-01-13  Richard Henderson  <rth@redhat.com>

	* Versions.def (libm): Add GLIBC_2.3.3.
	* sysdeps/alpha/fpu/Versions: Add __c1_c*f and c*f to GLIBC_2.3.3.
	* sysdeps/alpha/fpu/cabsf.c, sysdeps/alpha/fpu/cargf.c,
	sysdeps/alpha/fpu/cfloat-compat.h, sysdeps/alpha/fpu/cimagf.c,
	sysdeps/alpha/fpu/conjf.c, sysdeps/alpha/fpu/crealf.c,
	sysdeps/alpha/fpu/s_cacosf.c, sysdeps/alpha/fpu/s_cacoshf.c,
	sysdeps/alpha/fpu/s_casinf.c, sysdeps/alpha/fpu/s_casinhf.c,
	sysdeps/alpha/fpu/s_catanf.c, sysdeps/alpha/fpu/s_catanhf.c,
	sysdeps/alpha/fpu/s_ccosf.c, sysdeps/alpha/fpu/s_ccoshf.c,
	sysdeps/alpha/fpu/s_cexpf.c, sysdeps/alpha/fpu/s_clog10f.c,
	sysdeps/alpha/fpu/s_clogf.c, sysdeps/alpha/fpu/s_cpowf.c,
	sysdeps/alpha/fpu/s_cprojf.c, sysdeps/alpha/fpu/s_csinf.c,
	sysdeps/alpha/fpu/s_csinhf.c, sysdeps/alpha/fpu/s_csqrtf.c,
	sysdeps/alpha/fpu/s_ctanf.c, sysdeps/alpha/fpu/s_ctanhf.c: New files.
	* sysdeps/alpha/fpu/bits/mathdef.h: Rename complex float
	functions for gcc 3.3.

	* sysdeps/generic/s_cacosf.c, sysdeps/generic/s_cacoshf.c,
	sysdeps/generic/s_casinf.c, sysdeps/generic/s_casinhf.c,
	sysdeps/generic/s_catanf.c, sysdeps/generic/s_catanhf.c,
	sysdeps/generic/s_ccosf.c, sysdeps/generic/s_ccoshf.c,
	sysdeps/generic/s_cexpf.c, sysdeps/generic/s_clog10f.c,
	sysdeps/generic/s_clogf.c, sysdeps/generic/s_cpowf.c,
	sysdeps/generic/s_cprojf.c, sysdeps/generic/s_csinf.c,
	sysdeps/generic/s_csinhf.c, sysdeps/generic/s_csqrtf.c,
	sysdeps/generic/s_ctanf.c, sysdeps/generic/s_ctanhf.c: Don't
	weak_alias if the function name has been #defined.

	* math/cabsf.c: Move ...
	* sysdeps/generic/cabsf.c: ... here.
	* math/cargf.c: Move ...
	* sysdeps/generic/cargf.c: ... here.
	* math/cimagf.c: Move ...
	* sysdeps/generic/cimagf.c: ... here.
	* math/conjf.c: Move ...
	* sysdeps/generic/conjf.c: ... here.
	* math/crealf.c: Move ...
	* sysdeps/generic/crealf.c: ... here.
2004-01-13 09:08:04 +00:00

126 lines
3.1 KiB
C

/* Return value of complex exponential function for float complex value.
Copyright (C) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <complex.h>
#include <fenv.h>
#include <math.h>
#include "math_private.h"
__complex__ float
__cexpf (__complex__ float x)
{
__complex__ float retval;
int rcls = fpclassify (__real__ x);
int icls = fpclassify (__imag__ x);
if (rcls >= FP_ZERO)
{
/* Real part is finite. */
if (icls >= FP_ZERO)
{
/* Imaginary part is finite. */
float exp_val = __ieee754_expf (__real__ x);
float sinix, cosix;
__sincosf (__imag__ x, &sinix, &cosix);
if (isfinite (exp_val))
{
__real__ retval = exp_val * cosix;
__imag__ retval = exp_val * sinix;
}
else
{
__real__ retval = __copysignf (exp_val, cosix);
__imag__ retval = __copysignf (exp_val, sinix);
}
}
else
{
/* If the imaginary part is +-inf or NaN and the real part
is not +-inf the result is NaN + iNaN. */
__real__ retval = __nanf ("");
__imag__ retval = __nanf ("");
#ifdef FE_INVALID
feraiseexcept (FE_INVALID);
#endif
}
}
else if (rcls == FP_INFINITE)
{
/* Real part is infinite. */
if (icls >= FP_ZERO)
{
/* Imaginary part is finite. */
float value = signbit (__real__ x) ? 0.0 : HUGE_VALF;
if (icls == FP_ZERO)
{
/* Imaginary part is 0.0. */
__real__ retval = value;
__imag__ retval = __imag__ x;
}
else
{
float sinix, cosix;
__sincosf (__imag__ x, &sinix, &cosix);
__real__ retval = __copysignf (value, cosix);
__imag__ retval = __copysignf (value, sinix);
}
}
else if (signbit (__real__ x) == 0)
{
__real__ retval = HUGE_VALF;
__imag__ retval = __nanf ("");
#ifdef FE_INVALID
if (icls == FP_INFINITE)
feraiseexcept (FE_INVALID);
#endif
}
else
{
__real__ retval = 0.0;
__imag__ retval = __copysignf (0.0, __imag__ x);
}
}
else
{
/* If the real part is NaN the result is NaN + iNaN. */
__real__ retval = __nanf ("");
__imag__ retval = __nanf ("");
#ifdef FE_INVALID
if (rcls != FP_NAN || icls != FP_NAN)
feraiseexcept (FE_INVALID);
#endif
}
return retval;
}
#ifndef __cexpf
weak_alias (__cexpf, cexpf)
#endif