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#[macro_export]
macro_rules! matrix {
() => {
{
use $crate::matrix::Matrix;
Matrix::new(0, 0, vec![])
}
};
($( $( $x: expr ),*);*) => {
{
use $crate::matrix::Matrix;
let data_as_nested_array = [ $( [ $($x),* ] ),* ];
let rows = data_as_nested_array.len();
let cols = data_as_nested_array[0].len();
let data_as_flat_array: Vec<_> = data_as_nested_array.into_iter()
.flat_map(|row| row.into_iter())
.cloned()
.collect();
Matrix::new(rows, cols, data_as_flat_array)
}
}
}
#[cfg(test)]
mod tests {
use matrix::{Matrix, BaseMatrix};
#[test]
fn matrix_macro() {
{
let mat = matrix![1, 2, 3;
4, 5, 6];
assert_eq!(2, mat.rows());
assert_eq!(3, mat.cols());
assert_eq!(&vec![1, 2, 3, 4, 5, 6], mat.data());
}
{
let mat = matrix![1, 2, 3];
assert_eq!(1, mat.rows());
assert_eq!(3, mat.cols());
assert_eq!(&vec![1, 2, 3], mat.data());
}
{
let mat = matrix![1];
assert_eq!(1, mat.rows());
assert_eq!(1, mat.cols());
assert_eq!(&vec![1], mat.data());
}
{
let mat = matrix![1.0, 2.0, 3.0;
4.0, 5.0, 6.0;
7.0, 8.0, 9.0];
let ref expected_data = vec![1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0];
assert_eq!(3, mat.rows());
assert_eq!(3, mat.cols());
assert_eq!(expected_data, mat.data());
}
}
#[test]
fn matrix_macro_empty_mat() {
let mat: Matrix<f64> = matrix![];
assert_eq!(0, mat.rows());
assert_eq!(0, mat.cols());
}
}