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-rw-r--r--math/s_catan_template.c104
1 files changed, 53 insertions, 51 deletions
diff --git a/math/s_catan_template.c b/math/s_catan_template.c
index 5ab4c0d..d8db96d 100644
--- a/math/s_catan_template.c
+++ b/math/s_catan_template.c
@@ -1,4 +1,4 @@
-/* Return arc tangent of complex double value.
+/* Return arc tangent of complex float type.
Copyright (C) 1997-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -22,10 +22,10 @@
#include <math_private.h>
#include <float.h>
-__complex__ double
-__catan (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__catan) (CFLOAT x)
{
- __complex__ double res;
+ CFLOAT res;
int rcls = fpclassify (__real__ x);
int icls = fpclassify (__imag__ x);
@@ -33,26 +33,26 @@ __catan (__complex__ double x)
{
if (rcls == FP_INFINITE)
{
- __real__ res = __copysign (M_PI_2, __real__ x);
- __imag__ res = __copysign (0.0, __imag__ x);
+ __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+ __imag__ res = M_COPYSIGN (0, __imag__ x);
}
else if (icls == FP_INFINITE)
{
if (rcls >= FP_ZERO)
- __real__ res = __copysign (M_PI_2, __real__ x);
+ __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
else
- __real__ res = __nan ("");
- __imag__ res = __copysign (0.0, __imag__ x);
+ __real__ res = M_NAN;
+ __imag__ res = M_COPYSIGN (0, __imag__ x);
}
else if (icls == FP_ZERO || icls == FP_INFINITE)
{
- __real__ res = __nan ("");
- __imag__ res = __copysign (0.0, __imag__ x);
+ __real__ res = M_NAN;
+ __imag__ res = M_COPYSIGN (0, __imag__ x);
}
else
{
- __real__ res = __nan ("");
- __imag__ res = __nan ("");
+ __real__ res = M_NAN;
+ __imag__ res = M_NAN;
}
}
else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
@@ -61,72 +61,73 @@ __catan (__complex__ double x)
}
else
{
- if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
- || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
+ if (M_FABS (__real__ x) >= 16 / M_EPSILON
+ || M_FABS (__imag__ x) >= 16 / M_EPSILON)
{
- __real__ res = __copysign (M_PI_2, __real__ x);
- if (fabs (__real__ x) <= 1.0)
- __imag__ res = 1.0 / __imag__ x;
- else if (fabs (__imag__ x) <= 1.0)
+ __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+ if (M_FABS (__real__ x) <= 1)
+ __imag__ res = 1 / __imag__ x;
+ else if (M_FABS (__imag__ x) <= 1)
__imag__ res = __imag__ x / __real__ x / __real__ x;
else
{
- double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
- __imag__ res = __imag__ x / h / h / 4.0;
+ FLOAT h = M_HYPOT (__real__ x / 2, __imag__ x / 2);
+ __imag__ res = __imag__ x / h / h / 4;
}
}
else
{
- double den, absx, absy;
+ FLOAT den, absx, absy;
- absx = fabs (__real__ x);
- absy = fabs (__imag__ x);
+ absx = M_FABS (__real__ x);
+ absy = M_FABS (__imag__ x);
if (absx < absy)
{
- double t = absx;
+ FLOAT t = absx;
absx = absy;
absy = t;
}
- if (absy < DBL_EPSILON / 2.0)
+ if (absy < M_EPSILON / 2)
{
- den = (1.0 - absx) * (1.0 + absx);
- if (den == -0.0)
- den = 0.0;
+ den = (1 - absx) * (1 + absx);
+ if (den == 0)
+ den = 0;
}
- else if (absx >= 1.0)
- den = (1.0 - absx) * (1.0 + absx) - absy * absy;
- else if (absx >= 0.75 || absy >= 0.5)
- den = -__x2y2m1 (absx, absy);
+ else if (absx >= 1)
+ den = (1 - absx) * (1 + absx) - absy * absy;
+ else if (absx >= M_LIT (0.75) || absy >= M_LIT (0.5))
+ den = -M_SUF (__x2y2m1) (absx, absy);
else
- den = (1.0 - absx) * (1.0 + absx) - absy * absy;
+ den = (1 - absx) * (1 + absx) - absy * absy;
- __real__ res = 0.5 * __ieee754_atan2 (2.0 * __real__ x, den);
+ __real__ res = M_LIT (0.5) * M_ATAN2 (2 * __real__ x, den);
- if (fabs (__imag__ x) == 1.0
- && fabs (__real__ x) < DBL_EPSILON * DBL_EPSILON)
- __imag__ res = (__copysign (0.5, __imag__ x)
- * (M_LN2 - __ieee754_log (fabs (__real__ x))));
+ if (M_FABS (__imag__ x) == 1
+ && M_FABS (__real__ x) < M_EPSILON * M_EPSILON)
+ __imag__ res = (M_COPYSIGN (M_LIT (0.5), __imag__ x)
+ * ((FLOAT) M_MLIT (M_LN2)
+ - M_LOG (M_FABS (__real__ x))));
else
{
- double r2 = 0.0, num, f;
+ FLOAT r2 = 0, num, f;
- if (fabs (__real__ x) >= DBL_EPSILON * DBL_EPSILON)
+ if (M_FABS (__real__ x) >= M_EPSILON * M_EPSILON)
r2 = __real__ x * __real__ x;
- num = __imag__ x + 1.0;
+ num = __imag__ x + 1;
num = r2 + num * num;
- den = __imag__ x - 1.0;
+ den = __imag__ x - 1;
den = r2 + den * den;
f = num / den;
- if (f < 0.5)
- __imag__ res = 0.25 * __ieee754_log (f);
+ if (f < M_LIT (0.5))
+ __imag__ res = M_LIT (0.25) * M_LOG (f);
else
{
- num = 4.0 * __imag__ x;
- __imag__ res = 0.25 * __log1p (num / den);
+ num = 4 * __imag__ x;
+ __imag__ res = M_LIT (0.25) * M_LOG1P (num / den);
}
}
}
@@ -136,8 +137,9 @@ __catan (__complex__ double x)
return res;
}
-weak_alias (__catan, catan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catan, __catanl)
-weak_alias (__catan, catanl)
+
+declare_mgen_alias (__catan, catan)
+
+#if M_LIBM_NEED_COMPAT (catan)
+declare_mgen_libm_compat (__catan, catan)
#endif