Mercurial > hg > CbC > CbC_gcc

comparison libquadmath/math/cbrtq.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
comparison
equal deleted inserted replaced
131:84e7813d76e9 145:1830386684a0
1 /* cbrtq.c 1 /* cbrtq.c
2 * 2 *
3 * Cube root, __float128 precision 3 * Cube root, long double precision
4 * 4 *
5 * 5 *
6 * 6 *
7 * SYNOPSIS: 7 * SYNOPSIS:
8 * 8 *
9 * __float128 x, y, cbrtq(); 9 * long double x, y, cbrtq();
10 * 10 *
11 * y = cbrtq( x ); 11 * y = cbrtq( x );
12 * 12 *
13 * 13 *
14 * 14 *
51 51
52 You should have received a copy of the GNU Lesser General Public 52 You should have received a copy of the GNU Lesser General Public
53 License along with this library; if not, see 53 License along with this library; if not, see
54 <http://www.gnu.org/licenses/>. */ 54 <http://www.gnu.org/licenses/>. */
55 55
56
57 #include "quadmath-imp.h" 56 #include "quadmath-imp.h"
58 57
59 static const __float128 CBRT2 = 1.259921049894873164767210607278228350570251Q; 58 static const __float128 CBRT2 = 1.259921049894873164767210607278228350570251Q;
60 static const __float128 CBRT4 = 1.587401051968199474751705639272308260391493Q; 59 static const __float128 CBRT4 = 1.587401051968199474751705639272308260391493Q;
61 static const __float128 CBRT2I = 0.7937005259840997373758528196361541301957467Q; 60 static const __float128 CBRT2I = 0.7937005259840997373758528196361541301957467Q;
62 static const __float128 CBRT4I = 0.6299605249474365823836053036391141752851257Q; 61 static const __float128 CBRT4I = 0.6299605249474365823836053036391141752851257Q;
63 62
64 63
65 __float128 64 __float128
66 cbrtq ( __float128 x) 65 cbrtq (__float128 x)
67 { 66 {
68 int e, rem, sign; 67 int e, rem, sign;
69 __float128 z; 68 __float128 z;
70 69
71 if (!finiteq (x)) 70 if (!finiteq (x))