Mercurial > octave
view liboctave/util/data-conv.cc @ 31605:e88a07dec498 stable
maint: Use macros to begin/end C++ namespaces.
* oct-conf-post-public.in.h: Define two macros (OCTAVE_BEGIN_NAMESPACE,
OCTAVE_END_NAMESPACE) that can be used to start/end a namespace.
* mk-opts.pl, build-env.h, build-env.in.cc, __betainc__.cc, __contourc__.cc,
__dsearchn__.cc, __eigs__.cc, __expint__.cc, __ftp__.cc, __gammainc__.cc,
__ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __lin_interpn__.cc,
__magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, amd.cc, auto-shlib.cc,
auto-shlib.h, balance.cc, base-text-renderer.cc, base-text-renderer.h,
besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc,
colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc,
defaults.cc, defaults.h, defun-int.h, defun.cc, det.cc, dirfns.cc, display.cc,
display.h, dlmread.cc, dmperm.cc, dot.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc,
ellipj.cc, environment.cc, environment.h, error.cc, error.h, errwarn.h,
event-manager.cc, event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc,
fcn-info.h, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc,
ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, getgrent.cc, getpwent.cc,
getrusage.cc, givens.cc, gl-render.cc, gl-render.h, gl2ps-print.cc,
gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc,
graphics.in.h, gsvd.cc, gtk-manager.cc, gtk-manager.h, hash.cc, help.cc,
help.h, hess.cc, hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h,
interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h,
inv.cc, jsondecode.cc, jsonencode.cc, kron.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-oct-text.cc, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex-private.h,
mex.cc, mgorth.cc, nproc.cc, oct-fstrm.cc, oct-fstrm.h, oct-hdf5-types.cc,
oct-hdf5-types.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h,
oct-opengl.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h,
oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h,
oct-strstrm.cc, oct-strstrm.h, oct-tex-lexer.in.ll, oct-tex-parser.yy,
ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-flt-fmt.cc,
pr-output.cc, procstream.cc, procstream.h, psi.cc, qr.cc, quad.cc, quadcc.cc,
qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, settings.cc, settings.h,
sighandlers.cc, sighandlers.h, sparse-xdiv.cc, sparse-xdiv.h, sparse-xpow.cc,
sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc, stack-frame.cc, stack-frame.h,
stream-euler.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc,
symbfact.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h,
text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc,
toplev.cc, tril.cc, tsearch.cc, typecast.cc, url-handle-manager.cc,
url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc,
variables.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc, xpow.h,
__delaunayn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audiodevinfo.cc,
audioread.cc, convhulln.cc, fftw.cc, gzip.cc, mk-build-env-features.sh,
mk-builtins.pl, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-builtin.h, ov-cell.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-classdef.h, ov-complex.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h,
ov-java.cc, ov-java.h, ov-mex-fcn.h, ov-null-mat.cc, ov-oncleanup.cc,
ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h,
ov.cc, ov.h, octave.cc, octave.h, mk-ops.sh, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc,
op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc,
op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc,
op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc,
op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc,
op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc,
op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc,
op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc,
op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc,
op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc,
op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc,
op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc,
op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h,
anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h,
comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll, oct-lvalue.cc,
oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h,
pt-anon-scopes.cc, pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h,
pt-args-block.cc, pt-args-block.h, pt-array-list.cc, pt-array-list.h,
pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-bp.cc, pt-bp.h,
pt-cbinop.cc, pt-cbinop.h, pt-cell.cc, pt-cell.h, pt-check.cc, pt-check.h,
pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc,
pt-const.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc,
pt-except.h, pt-exp.cc, pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc,
pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc,
pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc, pt-pr-code.h, pt-select.cc,
pt-select.h, pt-spmd.cc, pt-spmd.h, pt-stmt.cc, pt-stmt.h, pt-tm-const.cc,
pt-tm-const.h, pt-unop.cc, pt-unop.h, pt-vm-eval.cc, pt-walk.cc, pt-walk.h,
pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h, idx-vector.cc, idx-vector.h,
range-fwd.h, CollocWt.cc, CollocWt.h, aepbalance.cc, aepbalance.h, chol.cc,
chol.h, gepbalance.cc, gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h,
lo-mappers.cc, lo-mappers.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h,
oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-norm.h,
oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc,
qrp.h, randgamma.cc, randgamma.h, randmtzig.cc, randmtzig.h, randpoisson.cc,
randpoisson.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-lu.cc,
sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h, child-list.cc,
child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, file-ops.h, file-stat.cc,
file-stat.h, lo-sysdep.cc, lo-sysdep.h, lo-sysinfo.cc, lo-sysinfo.h,
mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h,
oct-password.cc, oct-password.h, oct-syscalls.cc, oct-syscalls.h, oct-time.cc,
oct-time.h, oct-uname.cc, oct-uname.h, action-container.cc, action-container.h,
base-list.h, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, f77-fcn.h,
file-info.cc, file-info.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc,
lo-hash.h, lo-ieee.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h,
oct-base64.cc, oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h,
oct-mutex.cc, oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h,
oct-sparse.cc, oct-sparse.h, oct-string.h, octave-preserve-stream-state.h,
pathsearch.cc, pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h,
url-transfer.cc, url-transfer.h : Use new macros to begin/end C++ namespaces.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 14:23:45 -0800 |
parents | 796f54d4ddbf |
children | 597f3ee61a48 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cctype> #include <cstdlib> #include <istream> #include <limits> #include <ostream> #include <vector> #include "byte-swap.h" #include "data-conv.h" #include "lo-error.h" #include "lo-ieee.h" #include "oct-locbuf.h" // FIXME: Almost all platform-dependent sizes such as "short" are now defined // to take fixed values (such as 2B). This was instigated for Matlab // compatibility (bug #41672). It means a lot of this code is probably // obsolete and could be pared down or removed entirely. #if defined (OCTAVE_HAVE_LONG_LONG_INT) # define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ do \ { \ int sz = BITS / std::numeric_limits<unsigned char>::digits; \ if (sizeof (TQ char) == sz) \ VAL = oct_data_conv::dt_ ## Q ## char; \ else if (sizeof (TQ short) == sz) \ VAL = oct_data_conv::dt_ ## Q ## short; \ else if (sizeof (TQ int) == sz) \ VAL = oct_data_conv::dt_ ## Q ## int; \ else if (sizeof (TQ long) == sz) \ VAL = oct_data_conv::dt_ ## Q ## long; \ else if (sizeof (TQ long long) == sz) \ VAL = oct_data_conv::dt_ ## Q ## longlong; \ else \ VAL = oct_data_conv::dt_unknown; \ } \ while (0) #else # define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ do \ { \ int sz = BITS / std::numeric_limits<unsigned char>::digits; \ if (sizeof (TQ char) == sz) \ VAL = oct_data_conv::dt_ ## Q ## char; \ else if (sizeof (TQ short) == sz) \ VAL = oct_data_conv::dt_ ## Q ## short; \ else if (sizeof (TQ int) == sz) \ VAL = oct_data_conv::dt_ ## Q ## int; \ else if (sizeof (TQ long) == sz) \ VAL = oct_data_conv::dt_ ## Q ## long; \ else \ VAL = oct_data_conv::dt_unknown; \ } \ while (0) #endif #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ do \ { \ int sz = BITS / std::numeric_limits<unsigned char>::digits; \ if (sizeof (float) == sz) \ VAL = oct_data_conv::dt_float; \ else if (sizeof (double) == sz) \ VAL = oct_data_conv::dt_double; \ else \ VAL = oct_data_conv::dt_unknown; \ } \ while (0) // I'm not sure it is worth the trouble, but let's use a lookup table // for the types that are supposed to be a specific number of bits // wide. Given the macros above, this should work as long as // std::numeric_limits<unsigned char>::digits is a multiple of 8 and // there are types with the right sizes. // // The sized data type lookup table has the following format: // // bits // +----+----+----+----+ // | 8 | 16 | 32 | 64 | // +----+----+----+----+ // signed integer | | | | | // +----+----+----+----+ // unsigned integer | | | | | // +----+----+----+----+ // floating point | | | | | // +----+----+----+----+ // // So, the 0,3 element is supposed to contain the oct_data_conv enum // value corresponding to the correct native data type for a signed // 32-bit integer. static void init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) { int bits = 8; for (int i = 0; i < 4; i++) { FIND_SIZED_INT_TYPE (table[0][i], bits, , ); FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); FIND_SIZED_FLOAT_TYPE (table[2][i], bits); bits *= 2; } } static std::string strip_spaces (const std::string& str) { std::size_t n = str.length (); std::size_t k = 0; std::string s (n, '\0'); for (std::size_t i = 0; i < n; i++) if (! isspace (str[i])) s[k++] = tolower (str[i]); s.resize (k); return s; } #define GET_SIZED_INT_TYPE(T, U) \ do \ { \ switch (sizeof (T)) \ { \ case 1: \ retval = dt_ ## U ## int8; \ break; \ \ case 2: \ retval = dt_ ## U ## int16; \ break; \ \ case 4: \ retval = dt_ ## U ## int32; \ break; \ \ case 8: \ retval = dt_ ## U ## int64; \ break; \ \ default: \ retval = dt_unknown; \ break; \ } \ } \ while (0) std::size_t oct_data_conv::data_type_size (data_type dt) { std::size_t retval = -1; switch (dt) { case oct_data_conv::dt_int8: retval = sizeof (int8_t); break; case oct_data_conv::dt_uint8: retval = sizeof (uint8_t); break; case oct_data_conv::dt_int16: retval = sizeof (int16_t); break; case oct_data_conv::dt_uint16: retval = sizeof (uint16_t); break; case oct_data_conv::dt_int32: retval = sizeof (int32_t); break; case oct_data_conv::dt_uint32: retval = sizeof (uint32_t); break; case oct_data_conv::dt_int64: retval = sizeof (int64_t); break; case oct_data_conv::dt_uint64: retval = sizeof (uint64_t); break; case oct_data_conv::dt_float: case oct_data_conv::dt_single: retval = sizeof (float); break; case oct_data_conv::dt_double: retval = sizeof (double); break; case oct_data_conv::dt_char: retval = sizeof (char); break; case oct_data_conv::dt_schar: retval = sizeof (signed char); break; case oct_data_conv::dt_uchar: retval = sizeof (unsigned char); break; case oct_data_conv::dt_short: retval = sizeof (short); break; case oct_data_conv::dt_ushort: retval = sizeof (unsigned short); break; case oct_data_conv::dt_int: retval = sizeof (int); break; case oct_data_conv::dt_uint: retval = sizeof (unsigned int); break; case oct_data_conv::dt_long: retval = sizeof (long); break; case oct_data_conv::dt_ulong: retval = sizeof (unsigned long); break; case oct_data_conv::dt_longlong: retval = sizeof (long long); break; case oct_data_conv::dt_ulonglong: retval = sizeof (unsigned long long); break; case oct_data_conv::dt_logical: retval = sizeof (bool); break; case oct_data_conv::dt_unknown: default: (*current_liboctave_error_handler) ("oct_data_conv::data_type_size: unknown data type"); break; } return retval; } oct_data_conv::data_type oct_data_conv::string_to_data_type (const std::string& str) { data_type retval = dt_unknown; static bool initialized = false; static data_type sized_type_table[3][4]; if (! initialized) { init_sized_type_lookup_table (sized_type_table); initialized = true; } std::string s = strip_spaces (str); // Organized so most frequent precision appears first if (s == "uint8") retval = dt_uint8; else if (s == "double" || s == "float64" || s == "real*8") retval = dt_double; else if (s == "single" || s == "float" || s == "float32" || s == "real*4") retval = dt_single; else if (s == "char" || s == "char*1") retval = dt_char; else if (s == "int") retval = dt_int32; else if (s == "uchar" || s == "unsignedchar") retval = dt_uint8; else if (s == "schar" || s == "signedchar") retval = dt_int8; else if (s == "int8" || s == "integer*1") retval = dt_int8; else if (s == "int16" || s == "integer*2") retval = dt_int16; else if (s == "uint16") retval = dt_uint16; else if (s == "int32" || s == "integer*4") retval = dt_int32; else if (s == "uint32") retval = dt_uint32; else if (s == "int64" || s == "integer*8") retval = dt_int64; else if (s == "uint64") retval = dt_uint64; else if (s == "short") retval = dt_int16; else if (s == "ushort" || s == "unsignedshort") retval = dt_uint16; else if (s == "uint" || s == "unsignedint") retval = dt_uint32; else if (s == "long") retval = dt_int32; else if (s == "ulong" || s == "unsignedlong") retval = dt_uint32; // FIXME: The following are undocumented precisions else if (s == "longlong") GET_SIZED_INT_TYPE (long long, ); else if (s == "ulonglong" || s == "unsignedlonglong") GET_SIZED_INT_TYPE (unsigned long long, u); else if (s == "logical") retval = dt_logical; else (*current_liboctave_error_handler) ("invalid data type specified"); if (retval == dt_unknown) (*current_liboctave_error_handler) ("unable to find matching native data type for %s", s.c_str ()); return retval; } void oct_data_conv::string_to_data_type (const std::string& str, int& block_size, oct_data_conv::data_type& input_type, oct_data_conv::data_type& output_type) { block_size = 1; input_type = dt_uchar; output_type = dt_double; bool input_is_output = false; std::string s = strip_spaces (str); std::size_t pos = 0; if (s[0] == '*') input_is_output = true; else { std::size_t len = s.length (); while (pos < len && isdigit (s[pos])) pos++; if (pos > 0) { if (s[pos] == '*') { block_size = atoi (s.c_str ()); s = s.substr (pos+1); } else (*current_liboctave_error_handler) ("invalid repeat count in '%s'", str.c_str ()); } } pos = s.find ('='); if (pos != std::string::npos) { if (s[pos+1] == '>') { std::string s1; if (input_is_output) { s1 = s.substr (1, pos-1); (*current_liboctave_warning_with_id_handler) ("Octave:fread-precision-syntax", "warning: ignoring leading * in fread precision"); } else s1 = s.substr (0, pos); input_type = string_to_data_type (s1); output_type = string_to_data_type (s.substr (pos+2)); } else (*current_liboctave_error_handler) ("fread: invalid precision specified"); } else { if (input_is_output) s = s.substr (1); input_type = string_to_data_type (s); if (input_is_output) output_type = input_type; } } void oct_data_conv::string_to_data_type (const std::string& str, int& block_size, oct_data_conv::data_type& output_type) { block_size = 1; output_type = dt_double; std::string s = strip_spaces (str); std::size_t pos = 0; std::size_t len = s.length (); while (pos < len && isdigit (s[pos])) pos++; if (pos > 0) { if (s[pos] == '*') { block_size = atoi (s.c_str ()); s = s.substr (pos+1); } else (*current_liboctave_error_handler) ("invalid repeat count in '%s'", str.c_str ()); } output_type = string_to_data_type (s); } std::string oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) { std::string retval; switch (dt) { case oct_data_conv::dt_int8: retval = "int8"; break; case oct_data_conv::dt_uint8: retval = "uint8"; break; case oct_data_conv::dt_int16: retval = "int16"; break; case oct_data_conv::dt_uint16: retval = "uint16"; break; case oct_data_conv::dt_int32: retval = "int32"; break; case oct_data_conv::dt_uint32: retval = "uint32"; break; case oct_data_conv::dt_int64: retval = "int64"; break; case oct_data_conv::dt_uint64: retval = "uint64"; break; case oct_data_conv::dt_single: retval = "single"; break; case oct_data_conv::dt_double: retval = "double"; break; case oct_data_conv::dt_char: retval = "char"; break; case oct_data_conv::dt_schar: retval = "signed char"; break; case oct_data_conv::dt_uchar: retval = "unsigned char"; break; case oct_data_conv::dt_short: retval = "short"; break; case oct_data_conv::dt_ushort: retval = "unsigned short"; break; case oct_data_conv::dt_int: retval = "int"; break; case oct_data_conv::dt_uint: retval = "unsigned int"; break; case oct_data_conv::dt_long: retval = "long"; break; case oct_data_conv::dt_ulong: retval = "unsigned long"; break; case oct_data_conv::dt_longlong: retval = "long long"; break; case oct_data_conv::dt_ulonglong: retval = "unsigned long long"; break; case oct_data_conv::dt_float: retval = "float"; break; case oct_data_conv::dt_logical: retval = "logical"; break; case oct_data_conv::dt_unknown: default: retval = "unknown"; break; } return retval; } #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ do \ { \ if (len > 0) \ { \ OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ std::streamsize n_bytes = size * static_cast<std::streamsize> (len); \ stream.read (reinterpret_cast<char *> (ptr), n_bytes); \ if (swap) \ swap_bytes< size > (ptr, len); \ for (octave_idx_type i = 0; i < len; i++) \ data[i] = ptr[i]; \ } \ } \ while (0) // Have to use copy here to avoid writing over data accessed via // Matrix::data (). #define LS_DO_WRITE(TYPE, data, size, len, stream) \ do \ { \ if (len > 0) \ { \ char tmp_type = type; \ stream.write (&tmp_type, 1); \ OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ for (octave_idx_type i = 0; i < len; i++) \ ptr[i] = static_cast<TYPE> (data[i]); \ std::streamsize n_bytes = size * static_cast<std::streamsize> (len); \ stream.write (reinterpret_cast<char *> (ptr), n_bytes); \ } \ } \ while (0) // Loading variables from files. OCTAVE_NORETURN static void err_unrecognized_float_fmt (void) { (*current_liboctave_error_handler) ("unrecognized floating point format requested"); } // But first, some data conversion routines. // Currently, we only handle conversions for the IEEE types. To fix // that, make more of the following routines work. // FIXME: assumes sizeof (Complex) == 8 // FIXME: assumes sizeof (double) == 8 // FIXME: assumes sizeof (float) == 4 static void IEEE_big_double_to_IEEE_little_double (void *d, octave_idx_type len) { swap_bytes<8> (d, len); } static void IEEE_big_float_to_IEEE_little_float (void *d, octave_idx_type len) { swap_bytes<4> (d, len); } static void IEEE_little_double_to_IEEE_big_double (void *d, octave_idx_type len) { swap_bytes<8> (d, len); } static void IEEE_little_float_to_IEEE_big_float (void *d, octave_idx_type len) { swap_bytes<4> (d, len); } void do_double_format_conversion (void *data, octave_idx_type len, octave::mach_info::float_format from_fmt, octave::mach_info::float_format to_fmt) { switch (to_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: switch (from_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: break; case octave::mach_info::flt_fmt_ieee_big_endian: IEEE_big_double_to_IEEE_little_double (data, len); break; default: err_unrecognized_float_fmt (); break; } break; case octave::mach_info::flt_fmt_ieee_big_endian: switch (from_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: IEEE_little_double_to_IEEE_big_double (data, len); break; case octave::mach_info::flt_fmt_ieee_big_endian: break; default: err_unrecognized_float_fmt (); break; } break; default: (*current_liboctave_error_handler) ("impossible state reached in file '%s' at line %d", __FILE__, __LINE__); break; } } void do_float_format_conversion (void *data, octave_idx_type len, octave::mach_info::float_format from_fmt, octave::mach_info::float_format to_fmt) { switch (to_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: switch (from_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: break; case octave::mach_info::flt_fmt_ieee_big_endian: IEEE_big_float_to_IEEE_little_float (data, len); break; default: err_unrecognized_float_fmt (); break; } break; case octave::mach_info::flt_fmt_ieee_big_endian: switch (from_fmt) { case octave::mach_info::flt_fmt_ieee_little_endian: IEEE_little_float_to_IEEE_big_float (data, len); break; case octave::mach_info::flt_fmt_ieee_big_endian: break; default: err_unrecognized_float_fmt (); break; } break; default: (*current_liboctave_error_handler) ("impossible state reached in file '%s' at line %d", __FILE__, __LINE__); break; } } void do_float_format_conversion (void *data, std::size_t sz, octave_idx_type len, octave::mach_info::float_format from_fmt, octave::mach_info::float_format to_fmt) { switch (sz) { case sizeof (float): do_float_format_conversion (data, len, from_fmt, to_fmt); break; case sizeof (double): do_double_format_conversion (data, len, from_fmt, to_fmt); break; default: (*current_liboctave_error_handler) ("impossible state reached in file '%s' at line %d", __FILE__, __LINE__); break; } } void read_doubles (std::istream& is, double *data, save_type type, octave_idx_type len, bool swap, octave::mach_info::float_format fmt) { switch (type) { case LS_U_CHAR: LS_DO_READ (uint8_t, swap, data, 1, len, is); break; case LS_U_SHORT: LS_DO_READ (uint16_t, swap, data, 2, len, is); break; case LS_U_INT: LS_DO_READ (uint32_t, swap, data, 4, len, is); break; case LS_CHAR: LS_DO_READ (int8_t, swap, data, 1, len, is); break; case LS_SHORT: LS_DO_READ (int16_t, swap, data, 2, len, is); break; case LS_INT: LS_DO_READ (int32_t, swap, data, 4, len, is); break; case LS_FLOAT: { OCTAVE_LOCAL_BUFFER (float, ptr, len); std::streamsize n_bytes = 4 * static_cast<std::streamsize> (len); is.read (reinterpret_cast<char *> (ptr), n_bytes); do_float_format_conversion (ptr, len, fmt); for (octave_idx_type i = 0; i < len; i++) data[i] = ptr[i]; } break; case LS_DOUBLE: // No conversion necessary. { std::streamsize n_bytes = 8 * static_cast<std::streamsize> (len); is.read (reinterpret_cast<char *> (data), n_bytes); do_double_format_conversion (data, len, fmt); // FIXME: Potentially add conversion code for MIPS NA here, Bug #59830. // // for (int i = 0; i < len; i++) // data[i] = __lo_ieee_replace_MIPS_NA (data[i]); } break; default: is.clear (std::ios::failbit | is.rdstate ()); break; } } void read_floats (std::istream& is, float *data, save_type type, octave_idx_type len, bool swap, octave::mach_info::float_format fmt) { switch (type) { case LS_U_CHAR: LS_DO_READ (uint8_t, swap, data, 1, len, is); break; case LS_U_SHORT: LS_DO_READ (uint16_t, swap, data, 2, len, is); break; case LS_U_INT: LS_DO_READ (uint32_t, swap, data, 4, len, is); break; case LS_CHAR: LS_DO_READ (int8_t, swap, data, 1, len, is); break; case LS_SHORT: LS_DO_READ (int16_t, swap, data, 2, len, is); break; case LS_INT: LS_DO_READ (int32_t, swap, data, 4, len, is); break; case LS_FLOAT: // No conversion necessary. { std::streamsize n_bytes = 4 * static_cast<std::streamsize> (len); is.read (reinterpret_cast<char *> (data), n_bytes); do_float_format_conversion (data, len, fmt); } break; case LS_DOUBLE: { OCTAVE_LOCAL_BUFFER (double, ptr, len); std::streamsize n_bytes = 8 * static_cast<std::streamsize> (len); is.read (reinterpret_cast<char *> (ptr), n_bytes); do_double_format_conversion (ptr, len, fmt); for (octave_idx_type i = 0; i < len; i++) data[i] = ptr[i]; } break; default: is.clear (std::ios::failbit | is.rdstate ()); break; } } void write_doubles (std::ostream& os, const double *data, save_type type, octave_idx_type len) { switch (type) { case LS_U_CHAR: LS_DO_WRITE (uint8_t, data, 1, len, os); break; case LS_U_SHORT: LS_DO_WRITE (uint16_t, data, 2, len, os); break; case LS_U_INT: LS_DO_WRITE (uint32_t, data, 4, len, os); break; case LS_CHAR: LS_DO_WRITE (int8_t, data, 1, len, os); break; case LS_SHORT: LS_DO_WRITE (int16_t, data, 2, len, os); break; case LS_INT: LS_DO_WRITE (int32_t, data, 4, len, os); break; case LS_FLOAT: LS_DO_WRITE (float, data, 4, len, os); break; case LS_DOUBLE: // No conversion necessary. { char tmp_type = static_cast<char> (type); os.write (&tmp_type, 1); std::streamsize n_bytes = 8 * static_cast<std::streamsize> (len); os.write (reinterpret_cast<const char *> (data), n_bytes); } break; default: (*current_liboctave_error_handler) ("unrecognized data format requested"); break; } } void write_floats (std::ostream& os, const float *data, save_type type, octave_idx_type len) { switch (type) { case LS_U_CHAR: LS_DO_WRITE (uint8_t, data, 1, len, os); break; case LS_U_SHORT: LS_DO_WRITE (uint16_t, data, 2, len, os); break; case LS_U_INT: LS_DO_WRITE (uint32_t, data, 4, len, os); break; case LS_CHAR: LS_DO_WRITE (int8_t, data, 1, len, os); break; case LS_SHORT: LS_DO_WRITE (int16_t, data, 2, len, os); break; case LS_INT: LS_DO_WRITE (int32_t, data, 4, len, os); break; case LS_FLOAT: // No conversion necessary. { char tmp_type = static_cast<char> (type); os.write (&tmp_type, 1); std::streamsize n_bytes = 4 * static_cast<std::streamsize> (len); os.write (reinterpret_cast<const char *> (data), n_bytes); } break; case LS_DOUBLE: LS_DO_WRITE (double, data, 8, len, os); break; default: (*current_liboctave_error_handler) ("unrecognized data format requested"); break; } }