Mercurial > octave-dspies
view examples/fortrandemo.cc @ 19010:3fb030666878 draft default tip dspies
Added special-case logical-indexing function
* logical-index.h (New file) : Logical-indexing function. May be called on
octave_value types via call_bool_index
* nz-iterators.h : Add base-class nz_iterator for iterator types. Array has
template bool for whether to internally store row-col or compute on the fly
Add skip_ahead method which skips forward to the next nonzero after its
argument
Add flat_index for computing octave_idx_type index of current position (with
assertion failure in the case of overflow)
Move is_zero to separate file
* ov-base-diag.cc, ov-base-mat.cc, ov-base-sparse.cc, ov-perm.cc
(do_index_op): Add call to call_bool_index in logical-index.h
* Array.h : Move forward-declaration for array_iterator to separate header file
* dim-vector.cc (dim_max): Refers to idx-bounds.h (max_idx)
* array-iter-decl.h (New file): Header file for forward declaration of
array-iterator
* direction.h : Add constants fdirc and bdirc to avoid having to reconstruct
them
* dv-utils.h, dv-utils.cc (New files) :
Utility functions for querying and constructing dim-vectors
* idx-bounds.h (New file) :
Utility constants and functions for determining whether things will overflow
the maximum allowed bounds
* interp-idx.h (New function : to_flat_idx) : Converts row-col pair to linear
index of octave_idx_type
* is-zero.h (New file) : Function for determining whether an element is zero
* logical-index.tst : Add tests for correct return-value dimensions and large
sparse matrix behavior
author | David Spies <dnspies@gmail.com> |
---|---|
date | Fri, 25 Jul 2014 13:39:31 -0600 |
parents | 4b32677b6229 |
children |
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#include <octave/oct.h> #include <octave/f77-fcn.h> extern "C" { F77_RET_T F77_FUNC (fortransub, FORTSUB) (const int&, double*, F77_CHAR_ARG_DECL F77_CHAR_ARG_LEN_DECL); } DEFUN_DLD (fortrandemo, args, , "Fortran Demo") { octave_value_list retval; int nargin = args.length (); if (nargin != 1) print_usage (); else { NDArray a = args(0).array_value (); if (! error_state) { double *av = a.fortran_vec (); octave_idx_type na = a.numel (); OCTAVE_LOCAL_BUFFER (char, ctmp, 128); F77_XFCN (fortransub, FORTSUB, (na, av, ctmp F77_CHAR_ARG_LEN (128))); retval(1) = std::string (ctmp); retval(0) = a; } } return retval; }