mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-21 07:19:46 +08:00
976d7c19e8
- make the beginning more precise - make the first example be a full selfcontained compiled example, no need for all the others, but having the first one doesn't hurt.
19 lines
418 B
C++
19 lines
418 B
C++
#include <iostream>
|
|
#include <Eigen/Core>
|
|
using namespace Eigen;
|
|
|
|
template <typename Derived>
|
|
void print_size(const EigenBase<Derived>& b)
|
|
{
|
|
std::cout << "size (rows, cols): " << b.size() << " (" << b.rows()
|
|
<< ", " << b.cols() << ")" << std::endl;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
Vector3f v;
|
|
print_size(v);
|
|
// v.asDiagonal() returns a 3x3 diagonal matrix pseudo-expression
|
|
print_size(v.asDiagonal());
|
|
}
|