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identity_matrix.cpp
1#include <symengine/basic.h>
2#include <symengine/number.h>
3#include <symengine/integer.h>
4#include <symengine/matrices/matrix_expr.h>
5#include <symengine/matrices/identity_matrix.h>
6
7namespace SymEngine
8{
9
11{
12 return n_->__hash__();
13}
14
15bool IdentityMatrix::__eq__(const Basic &o) const
16{
17 return (is_a<IdentityMatrix>(o)
18 && n_->__eq__(*down_cast<const IdentityMatrix &>(o).n_));
19}
20
22{
23 SYMENGINE_ASSERT(is_a<IdentityMatrix>(o));
24
25 return n_->compare(*down_cast<const IdentityMatrix &>(o).n_);
26}
27
29{
30 return {n_};
31}
32
33bool IdentityMatrix::is_canonical(const RCP<const Basic> &n) const
34{
35 if (is_a_Number(*n)) {
36 if (is_a<Integer>(*n)) {
37 if (down_cast<const Integer &>(*n).is_negative()) {
38 return false;
39 }
40 } else {
41 return false;
42 }
43 }
44 return true;
45}
46
47RCP<const MatrixExpr> identity_matrix(const RCP<const Basic> &n)
48{
49 if (is_a_Number(*n)) {
50 if (is_a<Integer>(*n)) {
51 if (down_cast<const Integer &>(*n).is_negative()) {
52 throw DomainError(
53 "Dimension of IdentityMatrix must be nonnegative");
54 }
55 } else {
56 throw DomainError(
57 "Dimension of IdentityMatrix must be a nonnegative integer");
58 }
59 }
61}
62
63} // namespace SymEngine
The base class for SymEngine.
The lowest unit of symbolic representation.
Definition basic.h:97
hash_t __hash__() const override
int compare(const Basic &o) const override
vec_basic get_args() const override
Returns the list of arguments.
bool __eq__(const Basic &o) const override
Test equality.
Main namespace for SymEngine package.