Mercurial > hg > octave-avbm
comparison src/utils.cc @ 4478:7afd4bf05aa8
[project @ 2003-07-30 19:15:31 by jwe]
author | jwe |
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date | Wed, 30 Jul 2003 19:15:31 +0000 |
parents | d7d9ca19960a |
children | cfbaee1f562f |
comparison
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4477:87c2e107f811 | 4478:7afd4bf05aa8 |
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227 // should be considered fatal; return 1 if this is ok. | 227 // should be considered fatal; return 1 if this is ok. |
228 | 228 |
229 int | 229 int |
230 empty_arg (const char *name, int nr, int nc) | 230 empty_arg (const char *name, int nr, int nc) |
231 { | 231 { |
232 int is_empty = 0; | 232 return (nr == 0 || nc == 0); |
233 | |
234 if (nr == 0 || nc == 0) | |
235 { | |
236 int flag = Vpropagate_empty_matrices; | |
237 | |
238 if (flag < 0) | |
239 { | |
240 gripe_empty_arg (name, 0); | |
241 is_empty = 1; | |
242 } | |
243 else if (flag == 0) | |
244 { | |
245 gripe_empty_arg (name, 1); | |
246 is_empty = -1; | |
247 } | |
248 else | |
249 is_empty = 1; | |
250 } | |
251 | |
252 return is_empty; | |
253 } | 233 } |
254 | 234 |
255 // See if the given file is in the path. | 235 // See if the given file is in the path. |
256 | 236 |
257 std::string | 237 std::string |
826 error ("%s: expecting two scalar arguments", warn_for); | 806 error ("%s: expecting two scalar arguments", warn_for); |
827 else | 807 else |
828 check_dimensions (nr, nc, warn_for); // May set error_state. | 808 check_dimensions (nr, nc, warn_for); // May set error_state. |
829 } | 809 } |
830 | 810 |
811 Matrix | |
812 identity_matrix (int nr, int nc) | |
813 { | |
814 Matrix m (nr, nc, 0.0); | |
815 | |
816 if (nr > 0 && nc > 0) | |
817 { | |
818 int n = std::min (nr, nc); | |
819 | |
820 for (int i = 0; i < n; i++) | |
821 m (i, i) = 1.0; | |
822 } | |
823 | |
824 return m; | |
825 } | |
826 | |
831 extern int | 827 extern int |
832 octave_format (std::ostream& os, const char *fmt, ...) | 828 octave_format (std::ostream& os, const char *fmt, ...) |
833 { | 829 { |
834 int retval = -1; | 830 int retval = -1; |
835 | 831 |