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authorIan Moffett <ian@osmora.org>2024-03-07 17:28:52 -0500
committerIan Moffett <ian@osmora.org>2024-03-07 18:24:51 -0500
commitf5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 (patch)
tree93b156621dc0303816b37f60ba88051b702d92f6 /lib/mlibc/options/ansi/musl-generic-math/sincosf.c
parentbd5969fc876a10b18613302db7087ef3c40f18e1 (diff)
build: Build mlibc + add distclean target
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'lib/mlibc/options/ansi/musl-generic-math/sincosf.c')
-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/sincosf.c117
1 files changed, 0 insertions, 117 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/sincosf.c b/lib/mlibc/options/ansi/musl-generic-math/sincosf.c
deleted file mode 100644
index f8ca723..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/sincosf.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/s_sinf.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- */
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-#define _GNU_SOURCE
-#include "libm.h"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-s1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */
-s2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */
-s3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
-s4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */
-
-void sincosf(float x, float *sin, float *cos)
-{
- double y;
- float_t s, c;
- uint32_t ix;
- unsigned n, sign;
-
- GET_FLOAT_WORD(ix, x);
- sign = ix >> 31;
- ix &= 0x7fffffff;
-
- /* |x| ~<= pi/4 */
- if (ix <= 0x3f490fda) {
- /* |x| < 2**-12 */
- if (ix < 0x39800000) {
- /* raise inexact if x!=0 and underflow if subnormal */
- FORCE_EVAL(ix < 0x00100000 ? x/0x1p120f : x+0x1p120f);
- *sin = x;
- *cos = 1.0f;
- return;
- }
- *sin = __sindf(x);
- *cos = __cosdf(x);
- return;
- }
-
- /* |x| ~<= 5*pi/4 */
- if (ix <= 0x407b53d1) {
- if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */
- if (sign) {
- *sin = -__cosdf(x + s1pio2);
- *cos = __sindf(x + s1pio2);
- } else {
- *sin = __cosdf(s1pio2 - x);
- *cos = __sindf(s1pio2 - x);
- }
- return;
- }
- /* -sin(x+c) is not correct if x+c could be 0: -0 vs +0 */
- *sin = -__sindf(sign ? x + s2pio2 : x - s2pio2);
- *cos = -__cosdf(sign ? x + s2pio2 : x - s2pio2);
- return;
- }
-
- /* |x| ~<= 9*pi/4 */
- if (ix <= 0x40e231d5) {
- if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */
- if (sign) {
- *sin = __cosdf(x + s3pio2);
- *cos = -__sindf(x + s3pio2);
- } else {
- *sin = -__cosdf(x - s3pio2);
- *cos = __sindf(x - s3pio2);
- }
- return;
- }
- *sin = __sindf(sign ? x + s4pio2 : x - s4pio2);
- *cos = __cosdf(sign ? x + s4pio2 : x - s4pio2);
- return;
- }
-
- /* sin(Inf or NaN) is NaN */
- if (ix >= 0x7f800000) {
- *sin = *cos = x - x;
- return;
- }
-
- /* general argument reduction needed */
- n = __rem_pio2f(x, &y);
- s = __sindf(y);
- c = __cosdf(y);
- switch (n&3) {
- case 0:
- *sin = s;
- *cos = c;
- break;
- case 1:
- *sin = c;
- *cos = -s;
- break;
- case 2:
- *sin = -s;
- *cos = -c;
- break;
- case 3:
- default:
- *sin = -c;
- *cos = s;
- break;
- }
-}