diff options
Diffstat (limited to 'sysdeps/libm-ieee754')
| -rw-r--r-- | sysdeps/libm-ieee754/s_cexp.c | 2 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_clog.c | 61 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_clogf.c | 57 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_clogl.c | 57 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_rintl.c | 20 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_rinttol.c | 242 | ||||
| -rw-r--r-- | sysdeps/libm-ieee754/s_rinttoll.c | 242 |
7 files changed, 670 insertions, 11 deletions
diff --git a/sysdeps/libm-ieee754/s_cexp.c b/sysdeps/libm-ieee754/s_cexp.c index f6b443ddba..b99b042d78 100644 --- a/sysdeps/libm-ieee754/s_cexp.c +++ b/sysdeps/libm-ieee754/s_cexp.c @@ -91,6 +91,6 @@ __cexp (__complex__ double x) } weak_alias (__cexp, cexp) #ifdef NO_LONG_DOUBLE -string_alias (__cexp, __cexpl) +strong_alias (__cexp, __cexpl) weak_alias (__cexp, cexpl) #endif diff --git a/sysdeps/libm-ieee754/s_clog.c b/sysdeps/libm-ieee754/s_clog.c new file mode 100644 index 0000000000..f00753b3bb --- /dev/null +++ b/sysdeps/libm-ieee754/s_clog.c @@ -0,0 +1,61 @@ +/* Compute complex natural logarithm. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <complex.h> +#include <math.h> + +#include "math_private.h" + + +__complex__ double +__clog (__complex__ double x) +{ + __complex__ double result; + + if (__real__ x == 0.0 && __imag__ x == 0.0) + { + __imag__ result = signbit (__real__ x) ? M_PI : 0.0; + if (signbit (__imag__ x)) + __imag__ result = __copysign (__imag__ result, -1.0); + /* Yes, the following line raises an exception. */ + __real__ result = -1.0 / fabs (__real__ x); + } + else if (!__isnan (__real__ x) && !__isnan (__imag__ x)) + { + __real__ result = __ieee754_log (__ieee754_hypot (__real__ x, + __imag__ x)); + __imag__ result = __ieee754_atan2 (__imag__ x, __real__ x); + } + else + { + __imag__ result = __nan (""); + if (__isinf (__real__ x) || __isinf (__imag__ x)) + __real__ result = HUGE_VAL; + else + __real__ result = __nan (""); + } + + return result; +} +weak_alias (__clog, clog) +#ifdef NO_LONG_DOUBLE +strong_alias (__clog, __clogl) +weak_alias (__clog, clogl) +#endif diff --git a/sysdeps/libm-ieee754/s_clogf.c b/sysdeps/libm-ieee754/s_clogf.c new file mode 100644 index 0000000000..4eafc82bf0 --- /dev/null +++ b/sysdeps/libm-ieee754/s_clogf.c @@ -0,0 +1,57 @@ +/* Compute complex natural logarithm. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <complex.h> +#include <math.h> + +#include "math_private.h" + + +__complex__ float +__clogf (__complex__ float x) +{ + __complex__ float result; + + if (__real__ x == 0.0 && __imag__ x == 0.0) + { + __imag__ result = signbit (__real__ x) ? M_PI : 0.0; + if (signbit (__imag__ x)) + __imag__ result = __copysignf (__imag__ result, -1.0); + /* Yes, the following line raises an exception. */ + __real__ result = -1.0 / fabsf (__real__ x); + } + else if (!__isnanf (__real__ x) && !__isnanf (__imag__ x)) + { + __real__ result = __ieee754_logf (__ieee754_hypotf (__real__ x, + __imag__ x)); + __imag__ result = __ieee754_atan2f (__imag__ x, __real__ x); + } + else + { + __imag__ result = __nanf (""); + if (__isinff (__real__ x) || __isinff (__imag__ x)) + __real__ result = HUGE_VALF; + else + __real__ result = __nanf (""); + } + + return result; +} +weak_alias (__clogf, clogf) diff --git a/sysdeps/libm-ieee754/s_clogl.c b/sysdeps/libm-ieee754/s_clogl.c new file mode 100644 index 0000000000..a299a95c03 --- /dev/null +++ b/sysdeps/libm-ieee754/s_clogl.c @@ -0,0 +1,57 @@ +/* Compute complex natural logarithm. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <complex.h> +#include <math.h> + +#include "math_private.h" + + +__complex__ long double +__clogl (__complex__ long double x) +{ + __complex__ long double result; + + if (__real__ x == 0.0 && __imag__ x == 0.0) + { + __imag__ result = signbit (__real__ x) ? M_PI : 0.0; + if (signbit (__imag__ x)) + __imag__ result = __copysignl (__imag__ result, -1.0); + /* Yes, the following line raises an exception. */ + __real__ result = -1.0 / fabsl (__real__ x); + } + else if (!__isnanl (__real__ x) && !__isnanl (__imag__ x)) + { + __real__ result = __ieee754_logl (__ieee754_hypotl (__real__ x, + __imag__ x)); + __imag__ result = __ieee754_atan2l (__imag__ x, __real__ x); + } + else + { + __imag__ result = __nanl (""); + if (__isinfl (__real__ x) || __isinfl (__imag__ x)) + __real__ result = HUGE_VALL; + else + __real__ result = __nanl (""); + } + + return result; +} +weak_alias (__clogl, clogl) diff --git a/sysdeps/libm-ieee754/s_rintl.c b/sysdeps/libm-ieee754/s_rintl.c index 5b4b647880..4e957d8373 100644 --- a/sysdeps/libm-ieee754/s_rintl.c +++ b/sysdeps/libm-ieee754/s_rintl.c @@ -36,9 +36,9 @@ static const long double #else static long double #endif -TWO64[2]={ - 1.844674407370955161600000e+19, /* 0x403F, 0x00000000, 0x00000000 */ - -1.844674407370955161600000e+19, /* 0xC03F, 0x00000000, 0x00000000 */ +TWO63[2]={ + 9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */ + -9.223372036854775808000000e+18 /* 0xC03E, 0x00000000, 0x00000000 */ }; #ifdef __STDC__ @@ -61,8 +61,8 @@ TWO64[2]={ i0 &= 0xe0000000; i0 |= (i1|-i1)&0x80000000; SET_LDOUBLE_MSW(x,i0); - w = TWO64[sx]+x; - t = w-TWO64[sx]; + w = TWO63[sx]+x; + t = w-TWO63[sx]; GET_LDOUBLE_EXP(i0,t); SET_LDOUBLE_EXP(t,(i0&0x7fff)|(sx<<15)); return t; @@ -80,17 +80,17 @@ TWO64[2]={ s_rintf, too. -- drepper@cygnus.com */ } } - } else if (j0>63) { + } else if (j0>62) { if(j0==0x4000) return x+x; /* inf or NaN */ else return x; /* x is integral */ } else { - i = ((u_int32_t)(0xffffffff))>>(j0-32); + i = ((u_int32_t)(0xffffffff))>>(j0-31); if((i1&i)==0) return x; /* x is integral */ i>>=1; - if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-32)); + if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-31)); } SET_LDOUBLE_WORDS(x,se,i0,i1); - w = TWO64[sx]+x; - return w-TWO64[sx]; + w = TWO63[sx]+x; + return w-TWO63[sx]; } weak_alias (__rintl, rintl) diff --git a/sysdeps/libm-ieee754/s_rinttol.c b/sysdeps/libm-ieee754/s_rinttol.c new file mode 100644 index 0000000000..257bdc744c --- /dev/null +++ b/sysdeps/libm-ieee754/s_rinttol.c @@ -0,0 +1,242 @@ +/* Round argument to nearest integral value according to current rounding + direction. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <math.h> + +#include "math_private.h" + +#ifdef NO_LONG_DOUBLE +/* The `long double' is in fact the IEEE `double' type. */ +static long double two52[2] = +{ + 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ + -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ +}; + + +long int +__rinttol (long double x) +{ + int32_t j0,sx; + u_int32_t i0,i1,i; + long double t, w; + long int result; + + EXTRACT_WORDS (i0, i1, x); + + sx = i0 >> 31; + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + + if (j0 < 20) + { + if (j0 < 0) + { + if (((i0 & 0x7fffffff) | i1) == 0) + /* The number is 0. */ + result = 0; + else + { + i1 |= i0; + i0 &= 0xfffe0000; + i0 |= ((i1 | -i1) >> 12) & 0x80000; + SET_HIGH_WORD (x, i0); + w = two52[sx] + x; + t = w - two52[sx]; + GET_HIGH_WORD (i0, t); + if ((i0 & 0x7fffffff) >= 0x3fff0000) + result = sx ? -1 : 1; + else + result = 0; + } + } + else + { + u_int32_t i = 0x000fffff >> j0; + if (((i0 & i) | i1) == 0) + { + /* X is not integral. */ + i >>= 1; + if (((i0 & i) | i1) != 0) + { + if (j0 == 19) + i1 = 0x40000000; + else + i0 = (i0 & (~i)) | (0x20000 >> j0); + + INSERT_WORDS (x, i0, i1); + w = two52[sx] + x; + x = w - two52[sx]; + EXTRACT_WORDS (i0, i1, x); + + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + } + } + + result = ((i0 >> (20 - j0)) & 0xfffff) | (0x00100000 >> (20 - j0)); + if (sx) + result = -result; + } + } + else if ((unsigned int) j0 < sizeof (long int) * 8 && j0 < 53) + { + i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); + if ((i1 & i) != 0) + { + /* x is not integral. */ + i >>= 1; + if ((i1 & i) != 0) + i1 = (i1 & (~i)) | (0x40000000 >> (j0 - 20)); + } + + INSERT_WORDS (x, i0, i1); + w = two52[sx] + x; + x = w - two52[sx]; + EXTRACT_WORDS (i0, i1, x); + + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + + result = i0 | 0x00100000; + if (j0 > 20) + { + result <<= j0 - 20; + result |= i1 >> (52 - j0); + } + if (sx) + result = -result; + } + else + /* Too large. The number is either +-inf or NaN or it is too + large to be effected by rounding. The standard leaves it + undefined what to return when the number is too large to fit in + a `long int'. */ + result = (long int) x; + + return result; +} + +#else +static long double two63[2] = +{ + 9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */ + -9.223372036854775808000000e+18 /* 0xC03E, 0x00000000, 0x00000000 */ +}; + + +long int +__rinttol (long double x) +{ + int32_t se,j0,sx; + u_int32_t i0,i1,i; + long int result; + long double w, t; + + GET_LDOUBLE_WORDS (se, i0, i1, x); + + sx = (se >> 15) & 1; + j0 = (se & 0x7fff) - 0x3fff; + + if (j0 < 31) + { + if (j0 < 0) + { + if (((se & 0x7fff) | i0 | i1) == 0) + /* The number is 0. */ + result = 0; + else + { + i1 |= i0; + i0 &= 0xe0000000; + i0 |= (i1 | -i1) & 0x80000000; + SET_LDOUBLE_MSW (x, i0); + w = two63[sx] + x; + t = w - two63[sx]; + GET_LDOUBLE_EXP (i0, t); + if ((i0 & 0x7fff) >= 0x3fff) + result = sx ? -1 : 1; + else + result = 0; + } + } + else + { + u_int32_t i = 0x7fffffff >> j0; + if (((i0 & i) | i1) == 0) + { + /* X is not integral. */ + i >>= 1; + if (((i0 & i) | i1) != 0) + { + if (j0 == 31) + i1 = 0x40000000; + else + i0 = (i0 & (~i)) | (0x20000000 >> j0); + + SET_LDOUBLE_WORDS (x, se, i0, i1); + w = two63[sx] + x; + x = w - two63[sx]; + GET_LDOUBLE_WORDS (se, i0, i1, x); + + sx = (se >> 15) & 1; + j0 = (se & 0x7fff) - 0x3fff; + } + } + + + result = i0 >> (31 - j0); + } + } + else if ((unsigned int) j0 < sizeof (long int) * 8 && j0 < 64) + { + i = ((u_int32_t) (0xffffffff)) >> (j0 - 31); + if ((i1 & i) != 0) + { + /* x is not integral. */ + i >>= 1; + if ((i1 & i) != 0) + i1 = (i1 & (~i)) | (0x40000000 >> (j0 - 31)); + } + + SET_LDOUBLE_WORDS (x, se, i0, i1); + w = two63[sx] + x; + x = w - two63[sx]; + GET_LDOUBLE_WORDS (se, i0, i1, x); + + j0 = (se & 0x7fff) - 0x3fff; + + result = i0; + if (j0 > 31) + { + result <<= j0 - 31; + result |= i1 >> (63 - j0); + } + } + else + /* Too large. The number is either +-inf or NaN or it is too + large to be effected by rounding. The standard leaves it + undefined what to return when the number is too large to fit in + a `long int'. */ + result = (long int) x; + + return result; +} +#endif + +weak_alias (__rinttol, rinttol) diff --git a/sysdeps/libm-ieee754/s_rinttoll.c b/sysdeps/libm-ieee754/s_rinttoll.c new file mode 100644 index 0000000000..b2fccd17b7 --- /dev/null +++ b/sysdeps/libm-ieee754/s_rinttoll.c @@ -0,0 +1,242 @@ +/* Round argument to nearest integral value according to current rounding + direction. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <math.h> + +#include "math_private.h" + +#ifdef NO_LONG_DOUBLE +/* The `long double' is in fact the IEEE `double' type. */ +static long double two52[2] = +{ + 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ + -4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */ +}; + + +long long int +__rinttoll (long double x) +{ + int32_t j0,sx; + u_int32_t i0, i1, i; + long double t, w; + long long int result; + + EXTRACT_WORDS (i0, i1, x); + + sx = i0 >> 31; + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + + if (j0 < 20) + { + if (j0 < 0) + { + if (((i0 & 0x7fffffff) | i1) == 0) + /* The number is 0. */ + result = 0; + else + { + i1 |= i0; + i0 &= 0xfffe0000; + i0 |= ((i1 | -i1) >> 12) & 0x80000; + SET_HIGH_WORD (x, i0); + w = two52[sx] + x; + t = w - two52[sx]; + GET_HIGH_WORD (i0, t); + if ((i0 & 0x7fffffff) >= 0x3fff0000) + result = sx ? -1 : 1; + else + result = 0; + } + } + else + { + u_int32_t i = 0x000fffff >> j0; + if (((i0 & i) | i1) == 0) + { + /* X is not integral. */ + i >>= 1; + if (((i0 & i) | i1) != 0) + { + if (j0 == 19) + i1 = 0x40000000; + else + i0 = (i0 & (~i)) | (0x20000 >> j0); + + INSERT_WORDS (x, i0, i1); + w = two52[sx] + x; + x = w - two52[sx]; + EXTRACT_WORDS (i0, i1, x); + + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + } + } + + result = ((i0 >> (20 - j0)) & 0xfffff) | (0x00100000 >> (20 - j0)); + if (sx) + result = -result; + } + } + else if ((unsigned int) j0 < sizeof (long long int) * 8 && j0 < 53) + { + i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); + if ((i1 & i) != 0) + { + /* x is not integral. */ + i >>= 1; + if ((i1 & i) != 0) + i1 = (i1 & (~i)) | (0x40000000 >> (j0 - 20)); + } + + INSERT_WORDS (x, i0, i1); + w = two52[sx] + x; + x = w - two52[sx]; + EXTRACT_WORDS (i0, i1, x); + + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + + result = i0 | 0x00100000; + if (j0 > 20) + { + result <<= j0 - 20; + result |= i1 >> (52 - j0); + } + if (sx) + result = -result; + } + else + /* Too large. The number is either +-inf or NaN or it is too + large to be effected by rounding. The standard leaves it + undefined what to return when the number is too large to fit in + a `long int'. */ + result = (long long int) x; + + return result; +} + +#else +static long double two63[2] = +{ + 9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */ + -9.223372036854775808000000e+18 /* 0xC03E, 0x00000000, 0x00000000 */ +}; + + +long long int +__rinttoll (long double x) +{ + int32_t se,j0,sx; + u_int32_t i0, i1, i; + long long int result; + long double w, t; + + GET_LDOUBLE_WORDS (se, i0, i1, x); + + sx = (se >> 15) & 1; + j0 = (se & 0x7fff) - 0x3fff; + + if (j0 < 31) + { + if (j0 < 0) + { + if (((se & 0x7fff) | i0 | i1) == 0) + /* The number is 0. */ + result = 0; + else + { + i1 |= i0; + i0 &= 0xe0000000; + i0 |= (i1 | -i1) & 0x80000000; + SET_LDOUBLE_MSW (x, i0); + w = two63[sx] + x; + t = w - two63[sx]; + GET_LDOUBLE_EXP (i0, t); + if ((i0 & 0x7fff) >= 0x3fff) + result = sx ? -1 : 1; + else + result = 0; + } + } + else + { + u_int32_t i = 0x7fffffff >> j0; + if (((i0 & i) | i1) == 0) + { + /* X is not integral. */ + i >>= 1; + if (((i0 & i) | i1) != 0) + { + if (j0 == 31) + i1 = 0x40000000; + else + i0 = (i0 & (~i)) | (0x20000000 >> j0); + + SET_LDOUBLE_WORDS (x, se, i0, i1); + w = two63[sx] + x; + x = w - two63[sx]; + GET_LDOUBLE_WORDS (se, i0, i1, x); + + sx = (se >> 15) & 1; + j0 = (se & 0x7fff) - 0x3fff; + } + } + + + result = i0 >> (31 - j0); + } + } + else if ((unsigned int) j0 < sizeof (long long int) * 8 && j0 < 64) + { + i = ((u_int32_t) (0xffffffff)) >> (j0 - 31); + if ((i1 & i) != 0) + { + /* x is not integral. */ + i >>= 1; + if ((i1 & i) != 0) + i1 = (i1 & (~i)) | (0x40000000 >> (j0 - 31)); + } + + SET_LDOUBLE_WORDS (x, se, i0, i1); + w = two63[sx] + x; + x = w - two63[sx]; + GET_LDOUBLE_WORDS (se, i0, i1, x); + + j0 = (se & 0x7fff) - 0x3fff; + + result = i0; + if (j0 > 31) + { + result <<= j0 - 31; + result |= i1 >> (63 - j0); + } + } + else + /* Too large. The number is either +-inf or NaN or it is too + large to be effected by rounding. The standard leaves it + undefined what to return when the number is too large to fit in + a `long int'. */ + result = (long long int) x; + + return result; +} +#endif + +weak_alias (__rinttoll, rinttoll) |