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comparison liboctave/util/lo-utils.cc @ 31607:aac27ad79be6 stable

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maint: Re-indent code after switch to using namespace macros. * build-env.h, build-env.in.cc, Cell.h, __betainc__.cc, __eigs__.cc, __ftp__.cc, __ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __magick_read__.cc, __pchip_deriv__.cc, amd.cc, base-text-renderer.cc, base-text-renderer.h, besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc, dasrt.cc, data.cc, debug.cc, defaults.cc, defaults.h, det.cc, display.cc, display.h, dlmread.cc, dynamic-ld.cc, dynamic-ld.h, 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, file-io.cc, filter.cc, find.cc, ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, gl-render.cc, gl-render.h, gl2ps-print.cc, gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc, gsvd.cc, gtk-manager.cc, gtk-manager.h, help.cc, help.h, 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, latex-text-renderer.cc, latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h, lookup.cc, ls-hdf5.cc, ls-mat4.cc, ls-mat5.cc, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex.cc, mexproto.h, mxarray.h, mxtypes.in.h, oct-errno.in.cc, oct-hdf5-types.cc, oct-hist.cc, oct-hist.h, oct-map.cc, oct-map.h, oct-opengl.h, oct-prcstrm.h, oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, octave-default-image.h, ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-output.cc, psi.cc, qr.cc, quadcc.cc, rand.cc, regexp.cc, settings.cc, settings.h, sighandlers.cc, sighandlers.h, sparse-xpow.cc, sqrtm.cc, stack-frame.cc, stack-frame.h, stream-euler.cc, strfns.cc, svd.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h, symscope.cc, symscope.h, symtab.cc, symtab.h, sysdep.cc, sysdep.h, text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc, toplev.cc, typecast.cc, url-handle-manager.cc, url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc, variables.h, xdiv.cc, __delaunayn__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audioread.cc, convhulln.cc, gzip.cc, 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-diag.cc, ov-base-int.cc, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-mat.h, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-ch-mat.cc, ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h, ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-dld-fcn.cc, ov-dld-fcn.h, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc, ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-flt-re-mat.h, ov-intx.h, ov-java.cc, ov-lazy-idx.cc, ov-legacy-range.cc, ov-magic-int.cc, ov-mex-fcn.cc, ov-mex-fcn.h, ov-null-mat.cc, ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-mat.h, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, ov.h, ovl.h, octave.cc, octave.h, op-b-sbm.cc, op-bm-sbm.cc, op-cs-scm.cc, op-fm-fcm.cc, op-fs-fcm.cc, op-s-scm.cc, op-scm-cs.cc, op-scm-s.cc, op-sm-cs.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, oct-lvalue.cc, oct-lvalue.h, 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-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: Re-indent code after switch to using namespace macros.
author Rik <rik@octave.org>
date Thu, 01 Dec 2022 18:02:15 -0800
parents e88a07dec498
children 23664317f0d3 597f3ee61a48
comparison
equal deleted inserted replaced
31605:e88a07dec498 31607:aac27ad79be6
45 #include "lo-utils.h" 45 #include "lo-utils.h"
46 #include "oct-inttypes.h" 46 #include "oct-inttypes.h"
47 47
48 OCTAVE_BEGIN_NAMESPACE(octave) 48 OCTAVE_BEGIN_NAMESPACE(octave)
49 49
50 bool is_int_or_inf_or_nan (double x) 50 bool is_int_or_inf_or_nan (double x)
51 { 51 {
52 return math::isnan (x) || math::x_nint (x) == x; 52 return math::isnan (x) || math::x_nint (x) == x;
53 } 53 }
54 54
55 bool too_large_for_float (double x) 55 bool too_large_for_float (double x)
56 { 56 {
57 return (math::isfinite (x) 57 return (math::isfinite (x)
58 && fabs (x) > std::numeric_limits<float>::max ()); 58 && fabs (x) > std::numeric_limits<float>::max ());
59 } 59 }
60 60
61 bool too_large_for_float (const Complex& x) 61 bool too_large_for_float (const Complex& x)
62 { 62 {
63 return (too_large_for_float (x.real ()) 63 return (too_large_for_float (x.real ())
64 || too_large_for_float (x.imag ())); 64 || too_large_for_float (x.imag ()));
65 } 65 }
66 66
67 bool is_int_or_inf_or_nan (float x) 67 bool is_int_or_inf_or_nan (float x)
68 { 68 {
69 return math::isnan (x) || math::x_nint (x) == x; 69 return math::isnan (x) || math::x_nint (x) == x;
70 } 70 }
71 71
72 // Save a string. 72 // Save a string.
73 73
74 char * strsave (const char *s) 74 char * strsave (const char *s)
75 { 75 {
76 if (! s) 76 if (! s)
77 return nullptr; 77 return nullptr;
78 78
79 int len = strlen (s); 79 int len = strlen (s);
80 char *tmp = new char [len+1]; 80 char *tmp = new char [len+1];
81 tmp = strcpy (tmp, s); 81 tmp = strcpy (tmp, s);
82 return tmp; 82 return tmp;
83 } 83 }
84 84
85 std::string fgets (FILE *f) 85 std::string fgets (FILE *f)
86 { 86 {
87 bool eof; 87 bool eof;
88 return fgets (f, eof); 88 return fgets (f, eof);
89 } 89 }
90 90
91 std::string fgets (FILE *f, bool& eof) 91 std::string fgets (FILE *f, bool& eof)
92 { 92 {
93 eof = false; 93 eof = false;
94 94
95 std::string retval; 95 std::string retval;
96 96
97 int grow_size = 1024; 97 int grow_size = 1024;
98 int max_size = grow_size; 98 int max_size = grow_size;
99 99
100 char *buf = static_cast<char *> (std::malloc (max_size)); 100 char *buf = static_cast<char *> (std::malloc (max_size));
101 if (! buf) 101 if (! buf)
102 (*current_liboctave_error_handler) ("octave_fgets: unable to malloc %d bytes", max_size); 102 (*current_liboctave_error_handler) ("octave_fgets: unable to malloc %d bytes", max_size);
103 103
104 char *bufptr = buf; 104 char *bufptr = buf;
105 int len = 0; 105 int len = 0;
106 106
107 do 107 do
108 {
109 if (std::fgets (bufptr, grow_size, f))
110 {
111 len = strlen (bufptr);
112
113 if (len == grow_size - 1)
114 {
115 int tmp = bufptr - buf + grow_size - 1;
116 grow_size *= 2;
117 max_size += grow_size;
118 auto tmpbuf = static_cast<char *> (std::realloc (buf, max_size));
119 if (! tmpbuf)
120 {
121 free (buf);
122 (*current_liboctave_error_handler) ("octave_fgets: unable to realloc %d bytes", max_size);
123 }
124 buf = tmpbuf;
125 bufptr = buf + tmp;
126
127 if (*(bufptr-1) == '\n')
128 {
129 *bufptr = '\0';
130 retval = buf;
131 }
132 }
133 else if (bufptr[len-1] != '\n')
134 {
135 bufptr[len++] = '\n';
136 bufptr[len] = '\0';
137 retval = buf;
138 }
139 else
140 retval = buf;
141 }
142 else
143 {
144 if (len == 0)
145 {
146 eof = true;
147
148 free (buf);
149
150 buf = nullptr;
151 }
152
153 break;
154 }
155 }
156 while (retval.empty ());
157
158 free (buf);
159
160 octave_quit ();
161
162 return retval;
163 }
164
165 std::string fgetl (FILE *f)
166 {
167 bool eof;
168 return fgetl (f, eof);
169 }
170
171 std::string fgetl (FILE *f, bool& eof)
172 {
173 std::string retval = fgets (f, eof);
174
175 if (! retval.empty () && retval.back () == '\n')
176 retval.pop_back ();
177
178 return retval;
179 }
180
181 template <typename T>
182 T
183 read_value (std::istream& is)
184 {
185 T retval;
186 is >> retval;
187 return retval;
188 }
189
190 template OCTAVE_API bool read_value<bool> (std::istream& is);
191 template OCTAVE_API octave_int8 read_value<octave_int8> (std::istream& is);
192 template OCTAVE_API octave_int16 read_value<octave_int16> (std::istream& is);
193 template OCTAVE_API octave_int32 read_value<octave_int32> (std::istream& is);
194 template OCTAVE_API octave_int64 read_value<octave_int64> (std::istream& is);
195 template OCTAVE_API octave_uint8 read_value<octave_uint8> (std::istream& is);
196 template OCTAVE_API octave_uint16 read_value<octave_uint16> (std::istream& is);
197 template OCTAVE_API octave_uint32 read_value<octave_uint32> (std::istream& is);
198 template OCTAVE_API octave_uint64 read_value<octave_uint64> (std::istream& is);
199
200 // Note that the caller is responsible for repositioning the stream on
201 // failure.
202
203 template <typename T>
204 T
205 read_inf_nan_na (std::istream& is, char c0)
206 {
207 T val = 0.0;
208
209 switch (c0)
210 {
211 case 'i': case 'I':
108 { 212 {
109 if (std::fgets (bufptr, grow_size, f)) 213 char c1 = is.get ();
214 if (c1 == 'n' || c1 == 'N')
110 { 215 {
111 len = strlen (bufptr); 216 char c2 = is.get ();
112 217 if (c2 == 'f' || c2 == 'F')
113 if (len == grow_size - 1) 218 val = std::numeric_limits<T>::infinity ();
114 {
115 int tmp = bufptr - buf + grow_size - 1;
116 grow_size *= 2;
117 max_size += grow_size;
118 auto tmpbuf = static_cast<char *> (std::realloc (buf, max_size));
119 if (! tmpbuf)
120 {
121 free (buf);
122 (*current_liboctave_error_handler) ("octave_fgets: unable to realloc %d bytes", max_size);
123 }
124 buf = tmpbuf;
125 bufptr = buf + tmp;
126
127 if (*(bufptr-1) == '\n')
128 {
129 *bufptr = '\0';
130 retval = buf;
131 }
132 }
133 else if (bufptr[len-1] != '\n')
134 {
135 bufptr[len++] = '\n';
136 bufptr[len] = '\0';
137 retval = buf;
138 }
139 else 219 else
140 retval = buf; 220 is.setstate (std::ios::failbit);
141 } 221 }
142 else 222 else
223 is.setstate (std::ios::failbit);
224 }
225 break;
226
227 case 'n': case 'N':
228 {
229 char c1 = is.get ();
230 if (c1 == 'a' || c1 == 'A')
143 { 231 {
144 if (len == 0) 232 char c2 = is.get ();
233 if (c2 == 'n' || c2 == 'N')
234 val = std::numeric_limits<T>::quiet_NaN ();
235 else
145 { 236 {
146 eof = true; 237 val = numeric_limits<T>::NA ();
147 238 if (c2 != std::istream::traits_type::eof ())
148 free (buf); 239 is.putback (c2);
149 240 else
150 buf = nullptr; 241 is.clear (is.rdstate () & ~std::ios::failbit);
151 } 242 }
152
153 break;
154 } 243 }
244 else
245 is.setstate (std::ios::failbit);
155 } 246 }
156 while (retval.empty ()); 247 break;
157 248
158 free (buf); 249 default:
159 250 (*current_liboctave_error_handler)
160 octave_quit (); 251 ("read_inf_nan_na: invalid character '%c'", c0);
161 252 }
162 return retval; 253
163 } 254 return val;
164 255 }
165 std::string fgetl (FILE *f) 256
166 { 257 // Read a double value. Discard any sign on NaN and NA.
167 bool eof; 258
168 return fgetl (f, eof); 259 template <typename T>
169 } 260 double
170 261 read_fp_value (std::istream& is)
171 std::string fgetl (FILE *f, bool& eof) 262 {
172 { 263 T val = 0.0;
173 std::string retval = fgets (f, eof); 264
174 265 // FIXME: resetting stream position is likely to fail unless we are
175 if (! retval.empty () && retval.back () == '\n') 266 // reading from a file.
176 retval.pop_back (); 267 std::streampos pos = is.tellg ();
177 268
178 return retval; 269 char c1 = ' ';
179 } 270
180 271 while (isspace (c1))
181 template <typename T> 272 c1 = is.get ();
182 T 273
183 read_value (std::istream& is) 274 bool neg = false;
184 { 275
185 T retval; 276 switch (c1)
186 is >> retval; 277 {
187 return retval; 278 case '-':
188 } 279 neg = true;
189 280 OCTAVE_FALLTHROUGH;
190 template OCTAVE_API bool read_value<bool> (std::istream& is); 281
191 template OCTAVE_API octave_int8 read_value<octave_int8> (std::istream& is); 282 case '+':
192 template OCTAVE_API octave_int16 read_value<octave_int16> (std::istream& is);
193 template OCTAVE_API octave_int32 read_value<octave_int32> (std::istream& is);
194 template OCTAVE_API octave_int64 read_value<octave_int64> (std::istream& is);
195 template OCTAVE_API octave_uint8 read_value<octave_uint8> (std::istream& is);
196 template OCTAVE_API octave_uint16 read_value<octave_uint16> (std::istream& is);
197 template OCTAVE_API octave_uint32 read_value<octave_uint32> (std::istream& is);
198 template OCTAVE_API octave_uint64 read_value<octave_uint64> (std::istream& is);
199
200 // Note that the caller is responsible for repositioning the stream on
201 // failure.
202
203 template <typename T>
204 T
205 read_inf_nan_na (std::istream& is, char c0)
206 {
207 T val = 0.0;
208
209 switch (c0)
210 { 283 {
211 case 'i': case 'I': 284 char c2 = 0;
285 c2 = is.get ();
286 if (c2 == 'i' || c2 == 'I' || c2 == 'n' || c2 == 'N')
287 val = read_inf_nan_na<T> (is, c2);
288 else
289 {
290 is.putback (c2);
291 is >> val;
292 }
293
294 if (neg && ! is.fail ())
295 val = -val;
296 }
297 break;
298
299 case 'i': case 'I':
300 case 'n': case 'N':
301 val = read_inf_nan_na<T> (is, c1);
302 break;
303
304 default:
305 is.putback (c1);
306 is >> val;
307 break;
308 }
309
310 std::ios::iostate status = is.rdstate ();
311 if (status & std::ios::failbit)
312 {
313 // Convert MAX_VAL returned by C++ streams for very large numbers to Inf
314 if (val == std::numeric_limits<T>::max ())
212 { 315 {
213 char c1 = is.get (); 316 if (neg)
214 if (c1 == 'n' || c1 == 'N') 317 val = -std::numeric_limits<T>::infinity ();
215 { 318 else
216 char c2 = is.get (); 319 val = std::numeric_limits<T>::infinity ();
217 if (c2 == 'f' || c2 == 'F') 320 is.clear (status & ~std::ios::failbit);
218 val = std::numeric_limits<T>::infinity (); 321 }
219 else 322 else
220 is.setstate (std::ios::failbit); 323 {
221 } 324 // True error. Reset stream to original position and pass status on.
325 is.clear ();
326 is.seekg (pos);
327 is.setstate (status);
328 }
329 }
330
331 return val;
332 }
333
334 template <typename T>
335 std::complex<T>
336 read_cx_fp_value (std::istream& is)
337 {
338 T re = 0.0;
339 T im = 0.0;
340
341 std::complex<T> cx = 0.0;
342
343 char ch = ' ';
344
345 while (isspace (ch))
346 ch = is.get ();
347
348 if (ch == '(')
349 {
350 re = read_value<T> (is);
351 ch = is.get ();
352
353 if (ch == ',')
354 {
355 im = read_value<T> (is);
356 ch = is.get ();
357
358 if (ch == ')')
359 cx = std::complex<T> (re, im);
222 else 360 else
223 is.setstate (std::ios::failbit); 361 is.setstate (std::ios::failbit);
224 } 362 }
225 break; 363 else if (ch == ')')
226 364 cx = re;
227 case 'n': case 'N': 365 else
228 { 366 is.setstate (std::ios::failbit);
229 char c1 = is.get (); 367 }
230 if (c1 == 'a' || c1 == 'A') 368 else
231 { 369 {
232 char c2 = is.get (); 370 is.putback (ch);
233 if (c2 == 'n' || c2 == 'N') 371 cx = read_value<T> (is);
234 val = std::numeric_limits<T>::quiet_NaN (); 372 }
235 else 373
236 { 374 return cx;
237 val = numeric_limits<T>::NA (); 375 }
238 if (c2 != std::istream::traits_type::eof ()) 376
239 is.putback (c2); 377 // FIXME: Could we use traits and enable_if to avoid duplication in the
240 else 378 // following specializations?
241 is.clear (is.rdstate () & ~std::ios::failbit); 379
242 } 380 template <> OCTAVE_API double read_value (std::istream& is)
243 } 381 {
244 else 382 return read_fp_value<double> (is);
245 is.setstate (std::ios::failbit); 383 }
246 } 384
247 break; 385 template <> OCTAVE_API Complex read_value (std::istream& is)
248 386 {
249 default: 387 return read_cx_fp_value<double> (is);
250 (*current_liboctave_error_handler) 388 }
251 ("read_inf_nan_na: invalid character '%c'", c0); 389
252 } 390 template <> OCTAVE_API float read_value (std::istream& is)
253 391 {
254 return val; 392 return read_fp_value<float> (is);
255 } 393 }
256 394
257 // Read a double value. Discard any sign on NaN and NA. 395 template <> OCTAVE_API FloatComplex read_value (std::istream& is)
258 396 {
259 template <typename T> 397 return read_cx_fp_value<float> (is);
260 double 398 }
261 read_fp_value (std::istream& is) 399
262 { 400 template <typename T>
263 T val = 0.0; 401 void
264 402 write_value (std::ostream& os, const T& value)
265 // FIXME: resetting stream position is likely to fail unless we are 403 {
266 // reading from a file. 404 os << value;
267 std::streampos pos = is.tellg (); 405 }
268 406
269 char c1 = ' '; 407 template OCTAVE_API void
270 408 write_value<bool> (std::ostream& os, const bool& value);
271 while (isspace (c1)) 409 template OCTAVE_API void
272 c1 = is.get (); 410 write_value<octave_int8> (std::ostream& os, const octave_int8& value);
273 411 template OCTAVE_API void
274 bool neg = false; 412 write_value<octave_int16> (std::ostream& os, const octave_int16& value);
275 413 template OCTAVE_API void
276 switch (c1) 414 write_value<octave_int32> (std::ostream& os, const octave_int32& value);
277 { 415 template OCTAVE_API void
278 case '-': 416 write_value<octave_int64> (std::ostream& os, const octave_int64& value);
279 neg = true; 417 template OCTAVE_API void
280 OCTAVE_FALLTHROUGH; 418 write_value<octave_uint8> (std::ostream& os, const octave_uint8& value);
281 419 template OCTAVE_API void
282 case '+': 420 write_value<octave_uint16> (std::ostream& os, const octave_uint16& value);
283 { 421 template OCTAVE_API void
284 char c2 = 0; 422 write_value<octave_uint32> (std::ostream& os, const octave_uint32& value);
285 c2 = is.get (); 423 template OCTAVE_API void
286 if (c2 == 'i' || c2 == 'I' || c2 == 'n' || c2 == 'N') 424 write_value<octave_uint64> (std::ostream& os, const octave_uint64& value);
287 val = read_inf_nan_na<T> (is, c2); 425
288 else 426 // Note: precision is supposed to be managed outside of this function by
289 { 427 // setting stream parameters.
290 is.putback (c2); 428
291 is >> val; 429 template <> OCTAVE_API void
292 } 430 write_value (std::ostream& os, const double& value)
293 431 {
294 if (neg && ! is.fail ()) 432 if (lo_ieee_is_NA (value))
295 val = -val; 433 os << "NA";
296 } 434 else if (lo_ieee_isnan (value))
297 break; 435 os << "NaN";
298 436 else if (lo_ieee_isinf (value))
299 case 'i': case 'I': 437 os << (value < 0 ? "-Inf" : "Inf");
300 case 'n': case 'N': 438 else
301 val = read_inf_nan_na<T> (is, c1);
302 break;
303
304 default:
305 is.putback (c1);
306 is >> val;
307 break;
308 }
309
310 std::ios::iostate status = is.rdstate ();
311 if (status & std::ios::failbit)
312 {
313 // Convert MAX_VAL returned by C++ streams for very large numbers to Inf
314 if (val == std::numeric_limits<T>::max ())
315 {
316 if (neg)
317 val = -std::numeric_limits<T>::infinity ();
318 else
319 val = std::numeric_limits<T>::infinity ();
320 is.clear (status & ~std::ios::failbit);
321 }
322 else
323 {
324 // True error. Reset stream to original position and pass status on.
325 is.clear ();
326 is.seekg (pos);
327 is.setstate (status);
328 }
329 }
330
331 return val;
332 }
333
334 template <typename T>
335 std::complex<T>
336 read_cx_fp_value (std::istream& is)
337 {
338 T re = 0.0;
339 T im = 0.0;
340
341 std::complex<T> cx = 0.0;
342
343 char ch = ' ';
344
345 while (isspace (ch))
346 ch = is.get ();
347
348 if (ch == '(')
349 {
350 re = read_value<T> (is);
351 ch = is.get ();
352
353 if (ch == ',')
354 {
355 im = read_value<T> (is);
356 ch = is.get ();
357
358 if (ch == ')')
359 cx = std::complex<T> (re, im);
360 else
361 is.setstate (std::ios::failbit);
362 }
363 else if (ch == ')')
364 cx = re;
365 else
366 is.setstate (std::ios::failbit);
367 }
368 else
369 {
370 is.putback (ch);
371 cx = read_value<T> (is);
372 }
373
374 return cx;
375 }
376
377 // FIXME: Could we use traits and enable_if to avoid duplication in the
378 // following specializations?
379
380 template <> OCTAVE_API double read_value (std::istream& is)
381 {
382 return read_fp_value<double> (is);
383 }
384
385 template <> OCTAVE_API Complex read_value (std::istream& is)
386 {
387 return read_cx_fp_value<double> (is);
388 }
389
390 template <> OCTAVE_API float read_value (std::istream& is)
391 {
392 return read_fp_value<float> (is);
393 }
394
395 template <> OCTAVE_API FloatComplex read_value (std::istream& is)
396 {
397 return read_cx_fp_value<float> (is);
398 }
399
400 template <typename T>
401 void
402 write_value (std::ostream& os, const T& value)
403 {
404 os << value; 439 os << value;
405 } 440 }
406 441
407 template OCTAVE_API void 442 template <> OCTAVE_API void
408 write_value<bool> (std::ostream& os, const bool& value); 443 write_value (std::ostream& os, const Complex& value)
409 template OCTAVE_API void 444 {
410 write_value<octave_int8> (std::ostream& os, const octave_int8& value); 445 os << '(';
411 template OCTAVE_API void 446 write_value<double> (os, real (value));
412 write_value<octave_int16> (std::ostream& os, const octave_int16& value); 447 os << ',';
413 template OCTAVE_API void 448 write_value<double> (os, imag (value));
414 write_value<octave_int32> (std::ostream& os, const octave_int32& value); 449 os << ')';
415 template OCTAVE_API void 450 }
416 write_value<octave_int64> (std::ostream& os, const octave_int64& value); 451
417 template OCTAVE_API void 452 // Note: precision is supposed to be managed outside of this function by
418 write_value<octave_uint8> (std::ostream& os, const octave_uint8& value); 453 // setting stream parameters.
419 template OCTAVE_API void 454
420 write_value<octave_uint16> (std::ostream& os, const octave_uint16& value); 455 template <> OCTAVE_API void
421 template OCTAVE_API void 456 write_value (std::ostream& os, const float& value)
422 write_value<octave_uint32> (std::ostream& os, const octave_uint32& value); 457 {
423 template OCTAVE_API void 458 if (lo_ieee_is_NA (value))
424 write_value<octave_uint64> (std::ostream& os, const octave_uint64& value); 459 os << "NA";
425 460 else if (lo_ieee_isnan (value))
426 // Note: precision is supposed to be managed outside of this function by 461 os << "NaN";
427 // setting stream parameters. 462 else if (lo_ieee_isinf (value))
428 463 os << (value < 0 ? "-Inf" : "Inf");
429 template <> OCTAVE_API void 464 else
430 write_value (std::ostream& os, const double& value) 465 os << value;
431 { 466 }
432 if (lo_ieee_is_NA (value)) 467
433 os << "NA"; 468 template <> OCTAVE_API void
434 else if (lo_ieee_isnan (value)) 469 write_value (std::ostream& os, const FloatComplex& value)
435 os << "NaN"; 470 {
436 else if (lo_ieee_isinf (value)) 471 os << '(';
437 os << (value < 0 ? "-Inf" : "Inf"); 472 write_value<float> (os, real (value));
438 else 473 os << ',';
439 os << value; 474 write_value<float> (os, imag (value));
440 } 475 os << ')';
441 476 }
442 template <> OCTAVE_API void
443 write_value (std::ostream& os, const Complex& value)
444 {
445 os << '(';
446 write_value<double> (os, real (value));
447 os << ',';
448 write_value<double> (os, imag (value));
449 os << ')';
450 }
451
452 // Note: precision is supposed to be managed outside of this function by
453 // setting stream parameters.
454
455 template <> OCTAVE_API void
456 write_value (std::ostream& os, const float& value)
457 {
458 if (lo_ieee_is_NA (value))
459 os << "NA";
460 else if (lo_ieee_isnan (value))
461 os << "NaN";
462 else if (lo_ieee_isinf (value))
463 os << (value < 0 ? "-Inf" : "Inf");
464 else
465 os << value;
466 }
467
468 template <> OCTAVE_API void
469 write_value (std::ostream& os, const FloatComplex& value)
470 {
471 os << '(';
472 write_value<float> (os, real (value));
473 os << ',';
474 write_value<float> (os, imag (value));
475 os << ')';
476 }
477 477
478 OCTAVE_BEGIN_NAMESPACE(math) 478 OCTAVE_BEGIN_NAMESPACE(math)
479 479
480 bool int_multiply_overflow (int a, int b, int *r) 480 bool int_multiply_overflow (int a, int b, int *r)
481 { 481 {
482 return octave_i_multiply_overflow_wrapper (a, b, r); 482 return octave_i_multiply_overflow_wrapper (a, b, r);
483 } 483 }
484 484
485 bool int_multiply_overflow (long int a, long int b, long int *r) 485 bool int_multiply_overflow (long int a, long int b, long int *r)
486 { 486 {
487 return octave_li_multiply_overflow_wrapper (a, b, r); 487 return octave_li_multiply_overflow_wrapper (a, b, r);
488 } 488 }
489 489
490 #if defined (OCTAVE_HAVE_LONG_LONG_INT) 490 #if defined (OCTAVE_HAVE_LONG_LONG_INT)
491 bool int_multiply_overflow (long long int a, long long int b, 491 bool int_multiply_overflow (long long int a, long long int b,
492 long long int *r) 492 long long int *r)
493 { 493 {
494 return octave_lli_multiply_overflow_wrapper (a, b, r); 494 return octave_lli_multiply_overflow_wrapper (a, b, r);
495 } 495 }
496 #endif 496 #endif
497 497
498 bool int_multiply_overflow (unsigned int a, unsigned int b, 498 bool int_multiply_overflow (unsigned int a, unsigned int b,
499 unsigned int *r) 499 unsigned int *r)
500 { 500 {
501 return octave_ui_multiply_overflow_wrapper (a, b, r); 501 return octave_ui_multiply_overflow_wrapper (a, b, r);
502 } 502 }
503 503
504 bool int_multiply_overflow (unsigned long int a, unsigned long int b, 504 bool int_multiply_overflow (unsigned long int a, unsigned long int b,
505 unsigned long int *r) 505 unsigned long int *r)
506 { 506 {
507 return octave_uli_multiply_overflow_wrapper (a, b, r); 507 return octave_uli_multiply_overflow_wrapper (a, b, r);
508 } 508 }
509 509
510 #if defined (OCTAVE_HAVE_UNSIGNED_LONG_LONG_INT) 510 #if defined (OCTAVE_HAVE_UNSIGNED_LONG_LONG_INT)
511 bool int_multiply_overflow (unsigned long long int a, 511 bool int_multiply_overflow (unsigned long long int a,
512 unsigned long long int b, 512 unsigned long long int b,
513 unsigned long long int *r) 513 unsigned long long int *r)
514 { 514 {
515 return octave_ulli_multiply_overflow_wrapper (a, b, r); 515 return octave_ulli_multiply_overflow_wrapper (a, b, r);
516 } 516 }
517 #endif 517 #endif
518 518
519 OCTAVE_END_NAMESPACE(math) 519 OCTAVE_END_NAMESPACE(math)
520 OCTAVE_END_NAMESPACE(octave) 520 OCTAVE_END_NAMESPACE(octave)