vasilito
48a924c561
The libredox 0.1.19 / redox_syscall 0.9.1 bump left 45 recipe lockfiles pinning libredox 0.1.18+rb0.3.1 and redox_syscall 0.9.0+rb0.3.1. The cookbook builds with --locked, so every affected recipe died with error: cannot update the lock file .../Cargo.lock because --locked was passed to prevent this which is what took out redox-driver-sys -- and with it every Red Bear driver -- during the redbear-full build. Regenerating the fork lockfiles was not enough; the recipes that consume the forks as path deps carry their own. This is step 6 of local/docs/FORK-BUMP-PATCHING-POLICY.md applied to the recipe layer. Also drop the hardcoded GCC version in recipes/libs/libstdcxx-v3: the literal include/c++/13.2.0 stopped resolving the moment the cross toolchain moved to 16.1.0, leaving -I pointing at a directory that does not exist. Now resolves the newest installed C++ header directory and fails loudly if there is none. Same failure class as the hardcoded 13.2.0 in mk/prefix.mk. Note: a few recipe-level Cargo.lock files (redox-driver-pci, cpufreqd, redbear-acmd/-ecmd/-ftdi) sit beside a recipe.toml whose [source] is path = "source", so they are not build inputs; redox-driver-pci's even references a redox-driver-core/Cargo.toml that does not exist. They are left alone rather than given meaning they do not have. redox-driver-sys now cooks clean.
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* s_sinl.c -- long double version of s_sin.c.
|
|
* Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/* sinq(x)
|
|
* Return sine function of x.
|
|
*
|
|
* kernel function:
|
|
* __quadmath_kernel_sinq ... sine function on [-pi/4,pi/4]
|
|
* __quadmath_kernel_cosq ... cose function on [-pi/4,pi/4]
|
|
* __quadmath_rem_pio2q ... argument reduction routine
|
|
*
|
|
* Method.
|
|
* Let S,C and T denote the sin, cos and tan respectively on
|
|
* [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
|
|
* in [-pi/4 , +pi/4], and let n = k mod 4.
|
|
* We have
|
|
*
|
|
* n sin(x) cos(x) tan(x)
|
|
* ----------------------------------------------------------
|
|
* 0 S C T
|
|
* 1 C -S -1/T
|
|
* 2 -S -C T
|
|
* 3 -C S -1/T
|
|
* ----------------------------------------------------------
|
|
*
|
|
* Special cases:
|
|
* Let trig be any of sin, cos, or tan.
|
|
* trig(+-INF) is NaN, with signals;
|
|
* trig(NaN) is that NaN;
|
|
*
|
|
* Accuracy:
|
|
* TRIG(x) returns trig(x) nearly rounded
|
|
*/
|
|
|
|
#include "quadmath-imp.h"
|
|
|
|
__float128 sinq(__float128 x)
|
|
{
|
|
__float128 y[2],z=0;
|
|
int64_t n, ix;
|
|
|
|
/* High word of x. */
|
|
GET_FLT128_MSW64(ix,x);
|
|
|
|
/* |x| ~< pi/4 */
|
|
ix &= 0x7fffffffffffffffLL;
|
|
if(ix <= 0x3ffe921fb54442d1LL)
|
|
return __quadmath_kernel_sinq(x,z,0);
|
|
|
|
/* sin(Inf or NaN) is NaN */
|
|
else if (ix>=0x7fff000000000000LL) {
|
|
if (ix == 0x7fff000000000000LL) {
|
|
GET_FLT128_LSW64(n,x);
|
|
if (n == 0)
|
|
errno = EDOM;
|
|
}
|
|
return x-x;
|
|
}
|
|
|
|
/* argument reduction needed */
|
|
else {
|
|
n = __quadmath_rem_pio2q(x,y);
|
|
switch(n&3) {
|
|
case 0: return __quadmath_kernel_sinq(y[0],y[1],1);
|
|
case 1: return __quadmath_kernel_cosq(y[0],y[1]);
|
|
case 2: return -__quadmath_kernel_sinq(y[0],y[1],1);
|
|
default:
|
|
return -__quadmath_kernel_cosq(y[0],y[1]);
|
|
}
|
|
}
|
|
}
|