Mercurial > octave
view liboctave/numeric/lo-mappers.cc @ 21202:f7121e111991
maint: indent #ifdef blocks in liboctave and src directories.
* Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc,
Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc,
Array-voidp.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, CSparse.h, DiagArray2.cc, MArray-C.cc,
MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc,
MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MSparse.h, MatrixType.cc,
PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.cc,
boolMatrix.cc, boolNDArray.cc, boolSparse.cc, chMatrix.cc, chNDArray.cc,
dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc,
dSparse.cc, dSparse.h, dim-vector.cc, fCColVector.cc, fCDiagMatrix.cc,
fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc,
fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, int16NDArray.cc,
int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc,
uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc,
blaswrap.c, cquit.c, f77-extern.cc, f77-fcn.c, f77-fcn.h, lo-error.c, quit.cc,
quit.h, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc,
CmplxQR.cc, CmplxQRP.cc, CmplxSCHUR.cc, CmplxSVD.cc, CollocWt.cc, DASPK.cc,
DASRT.cc, DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, base-lu.cc, base-qr.cc,
dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc,
dbleQRP.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc,
fCmplxCHOL.cc, fCmplxGEPBAL.cc, fCmplxHESS.cc, fCmplxLU.cc, fCmplxQR.cc,
fCmplxQRP.cc, fCmplxSCHUR.cc, fCmplxSVD.cc, fEIG.cc, floatAEPBAL.cc,
floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc,
floatQRP.cc, floatSCHUR.cc, floatSVD.cc, lo-mappers.cc, lo-specfun.cc,
oct-convn.cc, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-rand.cc,
oct-spparms.cc, randgamma.c, randmtzig.c, randpoisson.c, sparse-chol.cc,
sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, mx-defs.h, dir-ops.cc,
file-ops.cc, file-stat.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc,
oct-group.cc, oct-openmp.h, oct-passwd.cc, oct-syscalls.cc, oct-time.cc,
oct-uname.cc, pathlen.h, sysdir.h, syswait.h, cmd-edit.cc, cmd-hist.cc,
data-conv.cc, f2c-main.c, glob-match.cc, lo-array-errwarn.cc,
lo-array-gripes.cc, lo-cutils.c, lo-cutils.h, lo-ieee.cc, lo-math.h,
lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc, oct-inttypes.cc,
oct-inttypes.h, oct-locbuf.cc, oct-mutex.cc, oct-refcount.h, oct-rl-edit.c,
oct-rl-hist.c, oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc,
sparse-sort.cc, sparse-util.cc, statdefs.h, str-vec.cc, unwind-prot.cc,
url-transfer.cc, display-available.h, main-cli.cc, main-gui.cc, main.in.cc,
mkoctfile.in.cc, octave-config.in.cc, shared-fcns.h:
indent #ifdef blocks in liboctave and src directories.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 06 Feb 2016 06:40:13 -0800 |
parents | f7084eae3318 |
children | 5f318c8ec634 |
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/* Copyright (C) 1996-2015 John W. Eaton Copyright (C) 2010 VZLU Prague This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <cfloat> #include "lo-error.h" #include "lo-ieee.h" #include "lo-mappers.h" #include "lo-math.h" #include "lo-specfun.h" #include "lo-utils.h" #include "oct-cmplx.h" #include "f77-fcn.h" // double -> double mappers. // Both xtrunc and xround belong here so we can keep gnulib:: out of // lo-mappers.h. double xtrunc (double x) { return gnulib::trunc (x); } double xcopysign (double x, double y) { return gnulib::copysign (x, y); } double xfloor (double x) { return gnulib::floor (x); } double xround (double x) { return gnulib::round (x); } double xroundb (double x) { double t = xround (x); if (fabs (x - t) == 0.5) t = 2 * xtrunc (0.5 * t); return t; } double signum (double x) { double tmp = 0.0; if (x < 0.0) tmp = -1.0; else if (x > 0.0) tmp = 1.0; return xisnan (x) ? octave_NaN : tmp; } double xlog2 (double x) { return gnulib::log2 (x); } Complex xlog2 (const Complex& x) { #if defined (M_LN2) static double ln2 = M_LN2; #else static double ln2 = gnulib::log (2); #endif return std::log (x) / ln2; } double xexp2 (double x) { #if defined (HAVE_EXP2) return exp2 (x); #else # if defined (M_LN2) static double ln2 = M_LN2; #else static double ln2 = gnulib::log (2); #endif return exp (x * ln2); #endif } double xlog2 (double x, int& exp) { return gnulib::frexp (x, &exp); } Complex xlog2 (const Complex& x, int& exp) { double ax = std::abs (x); double lax = xlog2 (ax, exp); return (ax != lax) ? (x / ax) * lax : x; } // double -> bool mappers. #if ! defined (HAVE_CMATH_ISNAN) bool xisnan (double x) { return lo_ieee_isnan (x); } #endif #if ! defined (HAVE_CMATH_ISFINITE) bool xfinite (double x) { return lo_ieee_finite (x); } #endif #if ! defined (HAVE_CMATH_ISINF) bool xisinf (double x) { return lo_ieee_isinf (x); } #endif bool octave_is_NA (double x) { return lo_ieee_is_NA (x); } // (double, double) -> double mappers. // complex -> complex mappers. Complex acos (const Complex& x) { static Complex i (0, 1); Complex tmp; if (imag (x) == 0.0) { // If the imaginary part of X is 0, then avoid generating an // imaginary part of -0 for the expression 1-x*x. // This effectively chooses the same phase of the branch cut as Matlab. double xr = real (x); tmp = Complex (1.0 - xr*xr); } else tmp = 1.0 - x*x; return -i * log (x + i * sqrt (tmp)); } Complex acosh (const Complex& x) { return log (x + sqrt (x + 1.0) * sqrt (x - 1.0)); } Complex asin (const Complex& x) { static Complex i (0, 1); Complex tmp; if (imag (x) == 0.0) { // If the imaginary part of X is 0, then avoid generating an // imaginary part of -0 for the expression 1-x*x. // This effectively chooses the same phase of the branch cut as Matlab. double xr = real (x); tmp = Complex (1.0 - xr*xr); } else tmp = 1.0 - x*x; return -i * log (i*x + sqrt (tmp)); } Complex asinh (const Complex& x) { return log (x + sqrt (x*x + 1.0)); } Complex atan (const Complex& x) { static Complex i (0, 1); return i * log ((i + x) / (i - x)) / 2.0; } Complex atanh (const Complex& x) { return log ((1.0 + x) / (1.0 - x)) / 2.0; } // complex -> bool mappers. bool octave_is_NA (const Complex& x) { return (octave_is_NA (real (x)) || octave_is_NA (imag (x))); } bool octave_is_NaN_or_NA (const Complex& x) { return (xisnan (real (x)) || xisnan (imag (x))); } // (complex, complex) -> complex mappers. // FIXME: need to handle NA too? Complex xmin (const Complex& x, const Complex& y) { return abs (x) <= abs (y) ? x : (xisnan (x) ? x : y); } Complex xmax (const Complex& x, const Complex& y) { return abs (x) >= abs (y) ? x : (xisnan (x) ? x : y); } // float -> float mappers. // Both xtrunc and xround belong here so we can keep gnulib:: out of // lo-mappers.h. float xtrunc (float x) { return gnulib::truncf (x); } float xcopysign (float x, float y) { return gnulib::copysignf (x, y); } float xfloor (float x) { return gnulib::floorf (x); } float xround (float x) { return gnulib::roundf (x); } float xroundb (float x) { float t = xround (x); if (fabsf (x - t) == 0.5) t = 2 * xtrunc (0.5 * t); return t; } float signum (float x) { float tmp = 0.0; if (x < 0.0) tmp = -1.0; else if (x > 0.0) tmp = 1.0; return xisnan (x) ? octave_Float_NaN : tmp; } float xlog2 (float x) { return gnulib::log2f (x); } FloatComplex xlog2 (const FloatComplex& x) { #if defined (M_LN2) static float ln2 = M_LN2; #else static float ln2 = log (2); #endif return std::log (x) / ln2; } float xexp2 (float x) { #if defined (HAVE_EXP2F) return exp2f (x); #elif defined (HAVE_EXP2) return exp2 (x); #else # if defined (M_LN2) static float ln2 = M_LN2; #else static float ln2 = log2 (2); #endif return exp (x * ln2); #endif } float xlog2 (float x, int& exp) { return gnulib::frexpf (x, &exp); } FloatComplex xlog2 (const FloatComplex& x, int& exp) { float ax = std::abs (x); float lax = xlog2 (ax, exp); return (ax != lax) ? (x / ax) * lax : x; } // float -> bool mappers. #if ! defined (HAVE_CMATH_ISNANF) bool xisnan (float x) { return lo_ieee_isnan (x); } #endif #if ! defined (HAVE_CMATH_ISFINITEF) bool xfinite (float x) { return lo_ieee_finite (x); } #endif #if ! defined (HAVE_CMATH_ISINFF) bool xisinf (float x) { return lo_ieee_isinf (x); } #endif bool octave_is_NA (float x) { return lo_ieee_is_NA (x); } // (float, float) -> float mappers. // complex -> complex mappers. FloatComplex acos (const FloatComplex& x) { static FloatComplex i (0, 1); FloatComplex tmp; if (imag (x) == 0.0f) { // If the imaginary part of X is 0, then avoid generating an // imaginary part of -0 for the expression 1-x*x. // This effectively chooses the same phase of the branch cut as Matlab. float xr = real (x); tmp = FloatComplex (1.0f - xr*xr); } else tmp = 1.0f - x*x; return -i * log (x + i * sqrt (tmp)); } FloatComplex acosh (const FloatComplex& x) { return log (x + sqrt (x + 1.0f) * sqrt (x - 1.0f)); } FloatComplex asin (const FloatComplex& x) { static FloatComplex i (0, 1); FloatComplex tmp; if (imag (x) == 0.0f) { // If the imaginary part of X is 0, then avoid generating an // imaginary part of -0 for the expression 1-x*x. // This effectively chooses the same phase of the branch cut as Matlab. float xr = real (x); tmp = FloatComplex (1.0f - xr*xr); } else tmp = 1.0f - x*x; return -i * log (i*x + sqrt (tmp)); } FloatComplex asinh (const FloatComplex& x) { return log (x + sqrt (x*x + 1.0f)); } FloatComplex atan (const FloatComplex& x) { static FloatComplex i (0, 1); return i * log ((i + x) / (i - x)) / 2.0f; } FloatComplex atanh (const FloatComplex& x) { return log ((1.0f + x) / (1.0f - x)) / 2.0f; } // complex -> bool mappers. bool octave_is_NA (const FloatComplex& x) { return (octave_is_NA (real (x)) || octave_is_NA (imag (x))); } bool octave_is_NaN_or_NA (const FloatComplex& x) { return (xisnan (real (x)) || xisnan (imag (x))); } // (complex, complex) -> complex mappers. // FIXME: need to handle NA too? FloatComplex xmin (const FloatComplex& x, const FloatComplex& y) { return abs (x) <= abs (y) ? x : (xisnan (x) ? x : y); } FloatComplex xmax (const FloatComplex& x, const FloatComplex& y) { return abs (x) >= abs (y) ? x : (xisnan (x) ? x : y); } Complex rc_acos (double x) { return fabs (x) > 1.0 ? acos (Complex (x)) : Complex (acos (x)); } FloatComplex rc_acos (float x) { return fabsf (x) > 1.0f ? acos (FloatComplex (x)) : FloatComplex (acosf (x)); } Complex rc_acosh (double x) { return x < 1.0 ? acosh (Complex (x)) : Complex (acosh (x)); } FloatComplex rc_acosh (float x) { return x < 1.0f ? acosh (FloatComplex (x)) : FloatComplex (acoshf (x)); } Complex rc_asin (double x) { return fabs (x) > 1.0 ? asin (Complex (x)) : Complex (asin (x)); } FloatComplex rc_asin (float x) { return fabsf (x) > 1.0f ? asin (FloatComplex (x)) : FloatComplex (asinf (x)); } Complex rc_atanh (double x) { return fabs (x) > 1.0 ? atanh (Complex (x)) : Complex (atanh (x)); } FloatComplex rc_atanh (float x) { return fabsf (x) > 1.0f ? atanh (FloatComplex (x)) : FloatComplex (atanhf (x)); } Complex rc_log (double x) { const double pi = 3.14159265358979323846; return x < 0.0 ? Complex (gnulib::log (-x), pi) : Complex (gnulib::log (x)); } FloatComplex rc_log (float x) { const float pi = 3.14159265358979323846f; return (x < 0.0f ? FloatComplex (gnulib::logf (-x), pi) : FloatComplex (gnulib::logf (x))); } Complex rc_log2 (double x) { const double pil2 = 4.53236014182719380962; // = pi / log(2) return x < 0.0 ? Complex (xlog2 (-x), pil2) : Complex (xlog2 (x)); } FloatComplex rc_log2 (float x) { const float pil2 = 4.53236014182719380962f; // = pi / log(2) return x < 0.0f ? FloatComplex (xlog2 (-x), pil2) : FloatComplex (xlog2 (x)); } Complex rc_log10 (double x) { const double pil10 = 1.36437635384184134748; // = pi / log(10) return x < 0.0 ? Complex (log10 (-x), pil10) : Complex (log10 (x)); } FloatComplex rc_log10 (float x) { const float pil10 = 1.36437635384184134748f; // = pi / log(10) return x < 0.0f ? FloatComplex (log10 (-x), pil10) : FloatComplex (log10f (x)); } Complex rc_sqrt (double x) { return x < 0.0 ? Complex (0.0, sqrt (-x)) : Complex (sqrt (x)); } FloatComplex rc_sqrt (float x) { return x < 0.0f ? FloatComplex (0.0f, sqrtf (-x)) : FloatComplex (sqrtf (x)); } bool xnegative_sign (double x) { return __lo_ieee_signbit (x); } bool xnegative_sign (float x) { return __lo_ieee_float_signbit (x); } // Convert X to the nearest integer value. Should not pass NaN to // this function. // Sometimes you need a large integer, but not always. octave_idx_type NINTbig (double x) { if (x > std::numeric_limits<octave_idx_type>::max ()) return std::numeric_limits<octave_idx_type>::max (); else if (x < std::numeric_limits<octave_idx_type>::min ()) return std::numeric_limits<octave_idx_type>::min (); else return static_cast<octave_idx_type> ((x > 0) ? (x + 0.5) : (x - 0.5)); } octave_idx_type NINTbig (float x) { if (x > std::numeric_limits<octave_idx_type>::max ()) return std::numeric_limits<octave_idx_type>::max (); else if (x < std::numeric_limits<octave_idx_type>::min ()) return std::numeric_limits<octave_idx_type>::min (); else return static_cast<octave_idx_type> ((x > 0) ? (x + 0.5) : (x - 0.5)); } int NINT (double x) { if (x > std::numeric_limits<int>::max ()) return std::numeric_limits<int>::max (); else if (x < std::numeric_limits<int>::min ()) return std::numeric_limits<int>::min (); else return static_cast<int> ((x > 0) ? (x + 0.5) : (x - 0.5)); } int NINT (float x) { if (x > std::numeric_limits<int>::max ()) return std::numeric_limits<int>::max (); else if (x < std::numeric_limits<int>::min ()) return std::numeric_limits<int>::min (); else return static_cast<int> ((x > 0) ? (x + 0.5) : (x - 0.5)); }