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Unified Diff: fusl/src/math/asinl.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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Index: fusl/src/math/asinl.c
diff --git a/fusl/src/math/asinl.c b/fusl/src/math/asinl.c
index 347c53568cb11d787f91caaf21b2673e57b29da8..7494848d1968f55d6bc184b89510d433afcbbaa4 100644
--- a/fusl/src/math/asinl.c
+++ b/fusl/src/math/asinl.c
@@ -17,55 +17,54 @@
#include "libm.h"
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
-long double asinl(long double x)
-{
- return asin(x);
+long double asinl(long double x) {
+ return asin(x);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#include "__invtrigl.h"
#if LDBL_MANT_DIG == 64
-#define CLOSETO1(u) (u.i.m>>56 >= 0xf7)
+#define CLOSETO1(u) (u.i.m >> 56 >= 0xf7)
#define CLEARBOTTOM(u) (u.i.m &= -1ULL << 32)
#elif LDBL_MANT_DIG == 113
#define CLOSETO1(u) (u.i.top >= 0xee00)
#define CLEARBOTTOM(u) (u.i.lo = 0)
#endif
-long double asinl(long double x)
-{
- union ldshape u = {x};
- long double z, r, s;
- uint16_t e = u.i.se & 0x7fff;
- int sign = u.i.se >> 15;
+long double asinl(long double x) {
+ union ldshape u = {x};
+ long double z, r, s;
+ uint16_t e = u.i.se & 0x7fff;
+ int sign = u.i.se >> 15;
- if (e >= 0x3fff) { /* |x| >= 1 or nan */
- /* asin(+-1)=+-pi/2 with inexact */
- if (x == 1 || x == -1)
- return x*pio2_hi + 0x1p-120f;
- return 0/(x-x);
- }
- if (e < 0x3fff - 1) { /* |x| < 0.5 */
- if (e < 0x3fff - (LDBL_MANT_DIG+1)/2) {
- /* return x with inexact if x!=0 */
- FORCE_EVAL(x + 0x1p120f);
- return x;
- }
- return x + x*__invtrigl_R(x*x);
- }
- /* 1 > |x| >= 0.5 */
- z = (1.0 - fabsl(x))*0.5;
- s = sqrtl(z);
- r = __invtrigl_R(z);
- if (CLOSETO1(u)) {
- x = pio2_hi - (2*(s+s*r)-pio2_lo);
- } else {
- long double f, c;
- u.f = s;
- CLEARBOTTOM(u);
- f = u.f;
- c = (z - f*f)/(s + f);
- x = 0.5*pio2_hi-(2*s*r - (pio2_lo-2*c) - (0.5*pio2_hi-2*f));
- }
- return sign ? -x : x;
+ if (e >= 0x3fff) { /* |x| >= 1 or nan */
+ /* asin(+-1)=+-pi/2 with inexact */
+ if (x == 1 || x == -1)
+ return x * pio2_hi + 0x1p-120f;
+ return 0 / (x - x);
+ }
+ if (e < 0x3fff - 1) { /* |x| < 0.5 */
+ if (e < 0x3fff - (LDBL_MANT_DIG + 1) / 2) {
+ /* return x with inexact if x!=0 */
+ FORCE_EVAL(x + 0x1p120f);
+ return x;
+ }
+ return x + x * __invtrigl_R(x * x);
+ }
+ /* 1 > |x| >= 0.5 */
+ z = (1.0 - fabsl(x)) * 0.5;
+ s = sqrtl(z);
+ r = __invtrigl_R(z);
+ if (CLOSETO1(u)) {
+ x = pio2_hi - (2 * (s + s * r) - pio2_lo);
+ } else {
+ long double f, c;
+ u.f = s;
+ CLEARBOTTOM(u);
+ f = u.f;
+ c = (z - f * f) / (s + f);
+ x = 0.5 * pio2_hi -
+ (2 * s * r - (pio2_lo - 2 * c) - (0.5 * pio2_hi - 2 * f));
+ }
+ return sign ? -x : x;
}
#endif

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