Mercurial > octave-dspies
view examples/standalonebuiltin.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 | adb7c7e6a4a1 |
children |
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#include <iostream> #include <octave/oct.h> #include <octave/builtin-defun-decls.h> int main (void) { int n = 2; Matrix a_matrix = Matrix (n, n); for (octave_idx_type i = 0; i < n; i++) for (octave_idx_type j = 0; j < n; j++) a_matrix(i,j) = (i + 1) * 10 + (j + 1); std::cout << "This is a matrix:" << std::endl << a_matrix << std::endl; octave_value_list in; in(0) = a_matrix; octave_value_list out = Fnorm (in, 1); double norm_of_the_matrix = out(0).double_value (); std::cout << "This is the norm of the matrix:" << std::endl << norm_of_the_matrix << std::endl; return 0; }