aboutsummaryrefslogtreecommitdiff
path: root/math/s_csin_template.c
diff options
context:
space:
mode:
authorPaul E. Murphy <murphyp@linux.vnet.ibm.com>2016-06-28 08:49:23 -0500
committerPaul E. Murphy <murphyp@linux.vnet.ibm.com>2016-08-19 16:46:41 -0500
commitc50eee19c447d3f2c182dc3a22f2b01a053dca41 (patch)
tree3b5f0d5c832bad20fce31502026f27fd6915ea8f /math/s_csin_template.c
parentffb84f5e197aaa9d46a35df84689c75d689d73cb (diff)
downloadglibc-c50eee19c447d3f2c182dc3a22f2b01a053dca41.tar
glibc-c50eee19c447d3f2c182dc3a22f2b01a053dca41.tar.gz
glibc-c50eee19c447d3f2c182dc3a22f2b01a053dca41.tar.bz2
glibc-c50eee19c447d3f2c182dc3a22f2b01a053dca41.zip
Convert _Complex sine functions to generated code
Refactor s_c{,a}sin{,h}{f,,l} into a single templated macro.
Diffstat (limited to 'math/s_csin_template.c')
-rw-r--r--math/s_csin_template.c79
1 files changed, 40 insertions, 39 deletions
diff --git a/math/s_csin_template.c b/math/s_csin_template.c
index e071aa650e..59d887693c 100644
--- a/math/s_csin_template.c
+++ b/math/s_csin_template.c
@@ -1,4 +1,4 @@
-/* Complex sine function for double.
+/* Complex sine function for float types.
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.
@@ -23,15 +23,15 @@
#include <math_private.h>
#include <float.h>
-__complex__ double
-__csin (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__csin) (CFLOAT x)
{
- __complex__ double retval;
+ CFLOAT retval;
int negate = signbit (__real__ x);
int rcls = fpclassify (__real__ x);
int icls = fpclassify (__imag__ x);
- __real__ x = fabs (__real__ x);
+ __real__ x = M_FABS (__real__ x);
if (__glibc_likely (icls >= FP_ZERO))
{
@@ -39,31 +39,31 @@ __csin (__complex__ double x)
if (__glibc_likely (rcls >= FP_ZERO))
{
/* Real part is finite. */
- const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2);
- double sinix, cosix;
+ const int t = (int) ((M_MAX_EXP - 1) * M_MLIT (M_LN2));
+ FLOAT sinix, cosix;
- if (__glibc_likely (__real__ x > DBL_MIN))
+ if (__glibc_likely (__real__ x > M_MIN))
{
- __sincos (__real__ x, &sinix, &cosix);
+ M_SINCOS (__real__ x, &sinix, &cosix);
}
else
{
sinix = __real__ x;
- cosix = 1.0;
+ cosix = 1;
}
if (negate)
sinix = -sinix;
- if (fabs (__imag__ x) > t)
+ if (M_FABS (__imag__ x) > t)
{
- double exp_t = __ieee754_exp (t);
- double ix = fabs (__imag__ x);
+ FLOAT exp_t = M_EXP (t);
+ FLOAT ix = M_FABS (__imag__ x);
if (signbit (__imag__ x))
cosix = -cosix;
ix -= t;
- sinix *= exp_t / 2.0;
- cosix *= exp_t / 2.0;
+ sinix *= exp_t / 2;
+ cosix *= exp_t / 2;
if (ix > t)
{
ix -= t;
@@ -73,20 +73,20 @@ __csin (__complex__ double x)
if (ix > t)
{
/* Overflow (original imaginary part of x > 3t). */
- __real__ retval = DBL_MAX * sinix;
- __imag__ retval = DBL_MAX * cosix;
+ __real__ retval = M_MAX * sinix;
+ __imag__ retval = M_MAX * cosix;
}
else
{
- double exp_val = __ieee754_exp (ix);
+ FLOAT exp_val = M_EXP (ix);
__real__ retval = exp_val * sinix;
__imag__ retval = exp_val * cosix;
}
}
else
{
- __real__ retval = __ieee754_cosh (__imag__ x) * sinix;
- __imag__ retval = __ieee754_sinh (__imag__ x) * cosix;
+ __real__ retval = M_COSH (__imag__ x) * sinix;
+ __imag__ retval = M_SINH (__imag__ x) * cosix;
}
math_check_force_underflow_complex (retval);
@@ -96,7 +96,7 @@ __csin (__complex__ double x)
if (icls == FP_ZERO)
{
/* Imaginary part is 0.0. */
- __real__ retval = __nan ("");
+ __real__ retval = M_NAN;
__imag__ retval = __imag__ x;
if (rcls == FP_INFINITE)
@@ -104,8 +104,8 @@ __csin (__complex__ double x)
}
else
{
- __real__ retval = __nan ("");
- __imag__ retval = __nan ("");
+ __real__ retval = M_NAN;
+ __imag__ retval = M_NAN;
feraiseexcept (FE_INVALID);
}
@@ -117,26 +117,26 @@ __csin (__complex__ double x)
if (rcls == FP_ZERO)
{
/* Real part is 0.0. */
- __real__ retval = __copysign (0.0, negate ? -1.0 : 1.0);
+ __real__ retval = M_COPYSIGN (0, negate ? -1 : 1);
__imag__ retval = __imag__ x;
}
else if (rcls > FP_ZERO)
{
/* Real part is finite. */
- double sinix, cosix;
+ FLOAT sinix, cosix;
- if (__glibc_likely (__real__ x > DBL_MIN))
+ if (__glibc_likely (__real__ x > M_MIN))
{
- __sincos (__real__ x, &sinix, &cosix);
+ M_SINCOS (__real__ x, &sinix, &cosix);
}
else
{
sinix = __real__ x;
- cosix = 1.0;
+ cosix = 1;
}
- __real__ retval = __copysign (HUGE_VAL, sinix);
- __imag__ retval = __copysign (HUGE_VAL, cosix);
+ __real__ retval = M_COPYSIGN (M_HUGE_VAL, sinix);
+ __imag__ retval = M_COPYSIGN (M_HUGE_VAL, cosix);
if (negate)
__real__ retval = -__real__ retval;
@@ -146,8 +146,8 @@ __csin (__complex__ double x)
else
{
/* The addition raises the invalid exception. */
- __real__ retval = __nan ("");
- __imag__ retval = HUGE_VAL;
+ __real__ retval = M_NAN;
+ __imag__ retval = M_HUGE_VAL;
if (rcls == FP_INFINITE)
feraiseexcept (FE_INVALID);
@@ -156,16 +156,17 @@ __csin (__complex__ double x)
else
{
if (rcls == FP_ZERO)
- __real__ retval = __copysign (0.0, negate ? -1.0 : 1.0);
+ __real__ retval = M_COPYSIGN (0, negate ? -1 : 1);
else
- __real__ retval = __nan ("");
- __imag__ retval = __nan ("");
+ __real__ retval = M_NAN;
+ __imag__ retval = M_NAN;
}
return retval;
}
-weak_alias (__csin, csin)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__csin, __csinl)
-weak_alias (__csin, csinl)
+
+declare_mgen_alias (__csin, csin)
+
+#if M_LIBM_NEED_COMPAT (csin)
+declare_mgen_libm_compat (__csin, csin)
#endif