lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-28 00:21:52 +03:00
Code Activity

Convert remaining complex function to generated files

Browse Source 
Convert cpow, clog, clog10, cexp, csqrt, and cproj functions
into generated templates.  Note, ldbl-opt still retains
s_clog10l.c as the aliasing rules are non-trivial.
This commit is contained in:
Paul E. Murphy
2016-06-28 14:28:04 -05:00
parent 1dbc54f61e
commit feb62ddacb
47 changed files with 332 additions and 2206 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
math/s_clog_template.c
View File

@ -22,97 +22,98 @@
#include <math_private.h>
#include <float.h>
__complex__ double
__clog (__complex__ double x)
CFLOAT
M_DECL_FUNC (__clog) (CFLOAT x)
{
__complex__ double result;
CFLOAT result;
int rcls = fpclassify (__real__ x);
int icls = fpclassify (__imag__ x);
if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
{
/* Real and imaginary part are 0.0. */
__imag__ result = signbit (__real__ x) ? M_PI : 0.0;
__imag__ result = __copysign (__imag__ result, __imag__ x);
__imag__ result = signbit (__real__ x) ? (FLOAT) M_MLIT (M_PI) : 0;
__imag__ result = M_COPYSIGN (__imag__ result, __imag__ x);
/* Yes, the following line raises an exception. */
__real__ result = -1.0 / fabs (__real__ x);
__real__ result = -1 / M_FABS (__real__ x);
}
else if (__glibc_likely (rcls != FP_NAN && icls != FP_NAN))
{
/* Neither real nor imaginary part is NaN. */
double absx = fabs (__real__ x), absy = fabs (__imag__ x);
FLOAT absx = M_FABS (__real__ x), absy = M_FABS (__imag__ x);
int scale = 0;
if (absx < absy)
{
double t = absx;
FLOAT t = absx;
absx = absy;
absy = t;
}
if (absx > DBL_MAX / 2.0)
if (absx > M_MAX / 2)
{
scale = -1;
absx = __scalbn (absx, scale);
absy = (absy >= DBL_MIN * 2.0 ? __scalbn (absy, scale) : 0.0);
absx = M_SCALBN (absx, scale);
absy = (absy >= M_MIN * 2 ? M_SCALBN (absy, scale) : 0);
}
else if (absx < DBL_MIN && absy < DBL_MIN)
else if (absx < M_MIN && absy < M_MIN)
{
scale = DBL_MANT_DIG;
absx = __scalbn (absx, scale);
absy = __scalbn (absy, scale);
scale = M_MANT_DIG;
absx = M_SCALBN (absx, scale);
absy = M_SCALBN (absy, scale);
}
if (absx == 1.0 && scale == 0)
if (absx == 1 && scale == 0)
{
__real__ result = __log1p (absy * absy) / 2.0;
__real__ result = M_LOG1P (absy * absy) / 2;
math_check_force_underflow_nonneg (__real__ result);
}
else if (absx > 1.0 && absx < 2.0 && absy < 1.0 && scale == 0)
else if (absx > 1 && absx < 2 && absy < 1 && scale == 0)
{
double d2m1 = (absx - 1.0) * (absx + 1.0);
if (absy >= DBL_EPSILON)
FLOAT d2m1 = (absx - 1) * (absx + 1);
if (absy >= M_EPSILON)
d2m1 += absy * absy;
__real__ result = __log1p (d2m1) / 2.0;
__real__ result = M_LOG1P (d2m1) / 2;
}
else if (absx < 1.0
&& absx >= 0.5
&& absy < DBL_EPSILON / 2.0
else if (absx < 1
&& absx >= M_LIT (0.5)
&& absy < M_EPSILON / 2
&& scale == 0)
{
double d2m1 = (absx - 1.0) * (absx + 1.0);
__real__ result = __log1p (d2m1) / 2.0;
FLOAT d2m1 = (absx - 1) * (absx + 1);
__real__ result = M_LOG1P (d2m1) / 2;
}
else if (absx < 1.0
&& absx >= 0.5
else if (absx < 1
&& absx >= M_LIT (0.5)
&& scale == 0
&& absx * absx + absy * absy >= 0.5)
&& absx * absx + absy * absy >= M_LIT (0.5))
{
double d2m1 = __x2y2m1 (absx, absy);
__real__ result = __log1p (d2m1) / 2.0;
FLOAT d2m1 = M_SUF (__x2y2m1) (absx, absy);
__real__ result = M_LOG1P (d2m1) / 2;
}
else
{
double d = __ieee754_hypot (absx, absy);
__real__ result = __ieee754_log (d) - scale * M_LN2;
FLOAT d = M_HYPOT (absx, absy);
__real__ result = M_LOG (d) - scale * (FLOAT) M_MLIT (M_LN2);
}
__imag__ result = __ieee754_atan2 (__imag__ x, __real__ x);
__imag__ result = M_ATAN2 (__imag__ x, __real__ x);
}
else
{
__imag__ result = __nan ("");
__imag__ result = M_NAN;
if (rcls == FP_INFINITE || icls == FP_INFINITE)
/* Real or imaginary part is infinite. */
__real__ result = HUGE_VAL;
__real__ result = M_HUGE_VAL;
else
__real__ result = __nan ("");
__real__ result = M_NAN;
}
return result;
}
weak_alias (__clog, clog)
#ifdef NO_LONG_DOUBLE
strong_alias (__clog, __clogl)
weak_alias (__clog, clogl)
declare_mgen_alias (__clog, clog)
#if M_LIBM_NEED_COMPAT (clog)
declare_mgen_libm_compat (__clog, clog)
#endif