diff --git a/headers/posix/math.h b/headers/posix/math.h index 85dbb65aaa..a16f2fc2a8 100644 --- a/headers/posix/math.h +++ b/headers/posix/math.h @@ -98,6 +98,7 @@ extern float hypotf(float x, float y); extern float ldexpf(float x, int exponent); extern float lgammaf(float x); extern long long llrintf(float x); +extern long long llroundf(float x); extern float log10f(float x); extern float log1pf(float x); extern float logbf(float x); @@ -135,6 +136,7 @@ extern double gamma(double x); extern double ldexp(double x, int exponent); extern double lgamma(double x); extern long long llrint(double x); +extern long long llround(double x); extern double log(double x); extern double log10(double x); extern long lrint(double x); @@ -161,6 +163,7 @@ extern long double atan2l(long double y, long double x); extern long double lgammal(long double x); extern long double nearbyintl(long double x); extern long long llrintl(long double x); +extern long long llroundl(long double x); extern long lrintl(long double x); extern long lroundl(long double x); extern long double remquol(long double x, long double y, int *quo); diff --git a/src/system/libroot/posix/glibc/arch/generic/s_llround.c b/src/system/libroot/posix/glibc/arch/generic/s_llround.c new file mode 100644 index 0000000000..dc1dc772f4 --- /dev/null +++ b/src/system/libroot/posix/glibc/arch/generic/s_llround.c @@ -0,0 +1,81 @@ +/* Round double value to long long int. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +#include "math_private.h" + + +long long int +__llround (double x) +{ + int32_t j0; + u_int32_t i1, i0; + long long int result; + int sign; + + EXTRACT_WORDS (i0, i1, x); + j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; + sign = (i0 & 0x80000000) != 0 ? -1 : 1; + i0 &= 0xfffff; + i0 |= 0x100000; + + if (j0 < 20) + { + if (j0 < 0) + return j0 < -1 ? 0 : sign; + else + { + i0 += 0x80000 >> j0; + + result = i0 >> (20 - j0); + } + } + else if (j0 < (int32_t) (8 * sizeof (long long int)) - 1) + { + if (j0 >= 52) + result = (((long long int) i0 << 32) | i1) << (j0 - 52); + else + { + u_int32_t j = i1 + (0x80000000 >> (j0 - 20)); + if (j < i1) + ++i0; + + if (j0 == 20) + result = (long long int) i0; + else + result = ((long long int) i0 << (j0 - 20)) | (j >> (52 - j0)); + } + } + else + { + /* The number is too large. It is left implementation defined + what happens. */ + return (long long int) x; + } + + return sign * result; +} + +weak_alias (__llround, llround) +#ifdef NO_LONG_DOUBLE +strong_alias (__llround, __llroundl) +weak_alias (__llround, llroundl) +#endif diff --git a/src/system/libroot/posix/glibc/arch/generic/s_llroundf.c b/src/system/libroot/posix/glibc/arch/generic/s_llroundf.c new file mode 100644 index 0000000000..d1822fe5c3 --- /dev/null +++ b/src/system/libroot/posix/glibc/arch/generic/s_llroundf.c @@ -0,0 +1,63 @@ +/* Round float value to long long int. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +#include "math_private.h" + + +long long int +__llroundf (float x) +{ + int32_t j0; + u_int32_t i; + long long int result; + int sign; + + GET_FLOAT_WORD (i, x); + j0 = ((i >> 23) & 0xff) - 0x7f; + sign = (i & 0x80000000) != 0 ? -1 : 1; + i &= 0x7fffff; + i |= 0x800000; + + if (j0 < (int32_t) (8 * sizeof (long long int)) - 1) + { + if (j0 < 0) + return j0 < -1 ? 0 : sign; + else if (j0 >= 23) + result = (long long int) i << (j0 - 23); + else + { + i += 0x400000 >> j0; + + result = i >> (23 - j0); + } + } + else + { + /* The number is too large. It is left implementation defined + what happens. */ + return (long long int) x; + } + + return sign * result; +} + +weak_alias (__llroundf, llroundf) diff --git a/src/system/libroot/posix/glibc/arch/generic/s_llroundl.c b/src/system/libroot/posix/glibc/arch/generic/s_llroundl.c new file mode 100644 index 0000000000..2fe94994b4 --- /dev/null +++ b/src/system/libroot/posix/glibc/arch/generic/s_llroundl.c @@ -0,0 +1,81 @@ +/* Round long double value to long long int. + Copyright (C) 1997, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +#include "math_private.h" + + +long long int +__llroundl (long double x) +{ + int32_t j0; + u_int32_t se, i1, i0; + long long int result; + int sign; + + GET_LDOUBLE_WORDS (se, i0, i1, x); + j0 = (se & 0x7fff) - 0x3fff; + sign = (se & 0x8000) != 0 ? -1 : 1; + + if (j0 < 31) + { + if (j0 < 0) + return j0 < -1 ? 0 : sign; + else + { + u_int32_t j = i0 + (0x40000000 >> j0); + if (j < i0) + { + j >>= 1; + j |= 0x80000000; + ++j0; + } + + result = j >> (31 - j0); + } + } + else if (j0 < (int32_t) (8 * sizeof (long long int)) - 1) + { + if (j0 >= 63) + result = (((long long int) i0 << 32) | i1) << (j0 - 63); + else + { + u_int32_t j = i1 + (0x80000000 >> (j0 - 31)); + + result = (long long int) i0; + if (j < i1) + ++result; + + if (j0 > 31) + result = (result << (j0 - 31)) | (j >> (63 - j0)); + } + } + else + { + /* The number is too large. It is left implementation defined + what happens. */ + return (long long int) x; + } + + return sign * result; +} + +weak_alias (__llroundl, llroundl) diff --git a/src/system/libroot/posix/glibc/arch/x86/Jamfile b/src/system/libroot/posix/glibc/arch/x86/Jamfile index be5d499357..da9f86dbbf 100644 --- a/src/system/libroot/posix/glibc/arch/x86/Jamfile +++ b/src/system/libroot/posix/glibc/arch/x86/Jamfile @@ -58,6 +58,7 @@ local genericSources = s_isinf.c s_isinff.c s_isnan.c s_isnanf.c s_ldexp.c s_ldexpf.c #s_ldexpl.c + s_llround.c s_llroundf.c s_llroundl.c s_lround.c s_lroundf.c s_lroundl.c s_matherr.c s_modf.c s_modff.c # s_modfl.c