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11210 libm should be cstyle(1ONBLD) clean

*** 20,35 **** */ /* * Copyright 2011 Nexenta Systems, Inc. All rights reserved. */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ ! /* long double sinpil(long double x), * return long double precision sinl(pi*x). * * Algorithm, 10/17/2002, K.C. Ng * ------------------------------ * Let y = |4x|, z = floor(y), and n = (int)(z mod 8.0) (displayed in binary). --- 20,38 ---- */ /* * Copyright 2011 Nexenta Systems, Inc. All rights reserved. */ + /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ ! /* BEGIN CSTYLED */ ! /* ! * long double sinpil(long double x), * return long double precision sinl(pi*x). * * Algorithm, 10/17/2002, K.C. Ng * ------------------------------ * Let y = |4x|, z = floor(y), and n = (int)(z mod 8.0) (displayed in binary).
*** 64,172 **** * This will return a result with error slightly more than one ulp (but less * than 2 ulp). If one wants accurate result, one may break up pi*t in * high (tpi_h) and low (tpi_l) parts and call __k_sin/cos(tip_h, tip_lo) * instead. */ #include "libm.h" #include "longdouble.h" #include <sys/isa_defs.h> ! #define I(q, m) ((int *) &(q))[m] ! #define U(q, m) ((unsigned *) &(q))[m] #if defined(__i386) || defined(__amd64) ! #define LDBL_MOST_SIGNIF_I(ld) ((I(ld, 2) << 16) | (0xffff & (I(ld, 1) >> 15))) #define LDBL_LEAST_SIGNIF_U(ld) U(ld, 0) #define PREC 64 #define PRECM1 63 #define PRECM2 62 static const long double twoPRECM2 = 9.223372036854775808000000000000000e+18L; #else #define LDBL_MOST_SIGNIF_I(ld) I(ld, 0) ! #define LDBL_LEAST_SIGNIF_U(ld) U(ld, sizeof(long double) / sizeof(int) - 1) #define PREC 113 #define PRECM1 112 #define PRECM2 111 static const long double twoPRECM2 = 5.192296858534827628530496329220096e+33L; #endif ! static const long double ! zero = 0.0L, ! quater = 0.25L, ! one = 1.0L, ! pi = 3.141592653589793238462643383279502884197e+0000L, ! sqrth = 0.707106781186547524400844362104849039284835937688474, ! tiny = 1.0e-100; long double ! sinpil(long double x) { long double y, z, t; int hx, n, k; unsigned lx; hx = LDBL_MOST_SIGNIF_I(x); lx = LDBL_LEAST_SIGNIF_U(x); k = ((hx & 0x7fff0000) >> 16) - 0x3fff; if (k >= PRECM2) { /* |x| >= 2**(Prec-2) */ ! if (k >= 16384) y = x - x; ! else { ! if (k >= PREC) y = zero; ! else if (k == PRECM1) ! y = (lx & 1) == 0 ? zero: -zero; ! else { /* k = Prec - 2 */ y = (lx & 1) == 0 ? zero : one; if ((lx & 2) != 0) y = -y; } } ! } ! else if (k < -2) /* |x| < 0.25 */ y = __k_sinl(pi * fabsl(x), zero); ! else { /* y = |4x|, z = floor(y), and n = (int)(z mod 8.0) */ y = 4.0L * fabsl(x); if (k < PRECM2) { z = y + twoPRECM2; n = LDBL_LEAST_SIGNIF_U(z) & 7; /* 3 LSb of z */ t = z - twoPRECM2; k = 0; ! if (t == y) k = 1; ! else if (t > y) { n -= 1; t = quater + (y - t) * quater; ! } ! else t = (y - t) * quater; } ! else { /* k = Prec-3 */ n = LDBL_LEAST_SIGNIF_U(y) & 7; /* 3 LSb of z */ k = 1; } if (k) { /* x = N/4 */ if ((n & 1) != 0) y = sqrth + tiny; else y = (n & 2) == 0 ? zero : one; if ((n & 4) != 0) y = -y; ! } ! else { if ((n & 1) != 0) t = quater - t; if (((n + (n & 1)) & 2) == 0) y = __k_sinl(pi * t, zero); else y = __k_cosl(pi * t, zero); if ((n & 4) != 0) y = -y; } } ! return hx >= 0 ? y : -y; } #undef U #undef LDBL_LEAST_SIGNIF_U #undef I #undef LDBL_MOST_SIGNIF_I --- 67,187 ---- * This will return a result with error slightly more than one ulp (but less * than 2 ulp). If one wants accurate result, one may break up pi*t in * high (tpi_h) and low (tpi_l) parts and call __k_sin/cos(tip_h, tip_lo) * instead. */ + /* END CSTYLED */ #include "libm.h" #include "longdouble.h" #include <sys/isa_defs.h> ! #define I(q, m) ((int *)&(q))[m] ! #define U(q, m) ((unsigned *)&(q))[m] #if defined(__i386) || defined(__amd64) ! #define LDBL_MOST_SIGNIF_I(ld) ((I(ld, 2) << 16) | (0xffff & (I(ld, \ ! 1) >> 15))) #define LDBL_LEAST_SIGNIF_U(ld) U(ld, 0) #define PREC 64 #define PRECM1 63 #define PRECM2 62 + static const long double twoPRECM2 = 9.223372036854775808000000000000000e+18L; #else #define LDBL_MOST_SIGNIF_I(ld) I(ld, 0) ! #define LDBL_LEAST_SIGNIF_U(ld) U(ld, sizeof (long double) / \ ! sizeof (int) - 1) #define PREC 113 #define PRECM1 112 #define PRECM2 111 + static const long double twoPRECM2 = 5.192296858534827628530496329220096e+33L; #endif ! static const long double zero = 0.0L, ! quater = 0.25L, ! one = 1.0L, ! pi = 3.141592653589793238462643383279502884197e+0000L, ! sqrth = 0.707106781186547524400844362104849039284835937688474, ! tiny = 1.0e-100; long double ! sinpil(long double x) ! { long double y, z, t; int hx, n, k; unsigned lx; hx = LDBL_MOST_SIGNIF_I(x); lx = LDBL_LEAST_SIGNIF_U(x); k = ((hx & 0x7fff0000) >> 16) - 0x3fff; + if (k >= PRECM2) { /* |x| >= 2**(Prec-2) */ ! if (k >= 16384) { y = x - x; ! } else { ! if (k >= PREC) { y = zero; ! } else if (k == PRECM1) { ! y = (lx & 1) == 0 ? zero : -zero; ! } else { /* k = Prec - 2 */ y = (lx & 1) == 0 ? zero : one; + if ((lx & 2) != 0) y = -y; } } ! } else if (k < -2) { /* |x| < 0.25 */ y = __k_sinl(pi * fabsl(x), zero); ! } else { /* y = |4x|, z = floor(y), and n = (int)(z mod 8.0) */ y = 4.0L * fabsl(x); + if (k < PRECM2) { z = y + twoPRECM2; n = LDBL_LEAST_SIGNIF_U(z) & 7; /* 3 LSb of z */ t = z - twoPRECM2; k = 0; ! ! if (t == y) { k = 1; ! } else if (t > y) { n -= 1; t = quater + (y - t) * quater; ! } else { t = (y - t) * quater; } ! } else { /* k = Prec-3 */ n = LDBL_LEAST_SIGNIF_U(y) & 7; /* 3 LSb of z */ k = 1; } + if (k) { /* x = N/4 */ if ((n & 1) != 0) y = sqrth + tiny; else y = (n & 2) == 0 ? zero : one; + if ((n & 4) != 0) y = -y; ! } else { if ((n & 1) != 0) t = quater - t; + if (((n + (n & 1)) & 2) == 0) y = __k_sinl(pi * t, zero); else y = __k_cosl(pi * t, zero); + if ((n & 4) != 0) y = -y; } } ! ! return (hx >= 0 ? y : -y); } + #undef U #undef LDBL_LEAST_SIGNIF_U #undef I #undef LDBL_MOST_SIGNIF_I