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Side by Side Diff: fusl/src/math/asinhl.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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1 #include "libm.h" 1 #include "libm.h"
2 2
3 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 3 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4 long double asinhl(long double x) 4 long double asinhl(long double x) {
5 { 5 return asinh(x);
6 » return asinh(x);
7 } 6 }
8 #elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 7 #elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
9 /* asinh(x) = sign(x)*log(|x|+sqrt(x*x+1)) ~= x - x^3/6 + o(x^5) */ 8 /* asinh(x) = sign(x)*log(|x|+sqrt(x*x+1)) ~= x - x^3/6 + o(x^5) */
10 long double asinhl(long double x) 9 long double asinhl(long double x) {
11 { 10 union ldshape u = {x};
12 » union ldshape u = {x}; 11 unsigned e = u.i.se & 0x7fff;
13 » unsigned e = u.i.se & 0x7fff; 12 unsigned s = u.i.se >> 15;
14 » unsigned s = u.i.se >> 15;
15 13
16 » /* |x| */ 14 /* |x| */
17 » u.i.se = e; 15 u.i.se = e;
18 » x = u.f; 16 x = u.f;
19 17
20 » if (e >= 0x3fff + 32) { 18 if (e >= 0x3fff + 32) {
21 » » /* |x| >= 0x1p32 or inf or nan */ 19 /* |x| >= 0x1p32 or inf or nan */
22 » » x = logl(x) + 0.693147180559945309417232121458176568L; 20 x = logl(x) + 0.693147180559945309417232121458176568L;
23 » } else if (e >= 0x3fff + 1) { 21 } else if (e >= 0x3fff + 1) {
24 » » /* |x| >= 2 */ 22 /* |x| >= 2 */
25 » » x = logl(2*x + 1/(sqrtl(x*x+1)+x)); 23 x = logl(2 * x + 1 / (sqrtl(x * x + 1) + x));
26 » } else if (e >= 0x3fff - 32) { 24 } else if (e >= 0x3fff - 32) {
27 » » /* |x| >= 0x1p-32 */ 25 /* |x| >= 0x1p-32 */
28 » » x = log1pl(x + x*x/(sqrtl(x*x+1)+1)); 26 x = log1pl(x + x * x / (sqrtl(x * x + 1) + 1));
29 » } else { 27 } else {
30 » » /* |x| < 0x1p-32, raise inexact if x!=0 */ 28 /* |x| < 0x1p-32, raise inexact if x!=0 */
31 » » FORCE_EVAL(x + 0x1p120f); 29 FORCE_EVAL(x + 0x1p120f);
32 » } 30 }
33 » return s ? -x : x; 31 return s ? -x : x;
34 } 32 }
35 #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 33 #elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
36 // TODO: broken implementation to make things compile 34 // TODO: broken implementation to make things compile
37 long double asinhl(long double x) 35 long double asinhl(long double x) {
38 { 36 return asinh(x);
39 » return asinh(x);
40 } 37 }
41 #endif 38 #endif
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