Use ? instead of unwrap() in examples
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@ -1439,6 +1439,7 @@ fn next_dense_coordinate(
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/// --------
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/// ```
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/// # use nalgebra_sparse::CooMatrix;
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/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
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/// use nalgebra_sparse::io::{save_to_matrix_market_str};
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/// let expected_str = r#"%%matrixmarket matrix coordinate integer general
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/// % matrixmarket file generated by nalgebra-sparse.
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@ -1449,9 +1450,10 @@ fn next_dense_coordinate(
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/// let row_indices = vec![0,1];
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/// let col_indices = vec![0,2];
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/// let values = vec![10,5];
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/// let matrix = CooMatrix::try_from_triplets(5,4,row_indices,col_indices,values).unwrap();
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/// let matrix = CooMatrix::try_from_triplets(5,4,row_indices,col_indices,values)?;
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/// let generated_matrixmarket_str = save_to_matrix_market_str(&matrix);
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/// assert_eq!(expected_str,generated_matrixmarket_str);
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/// # Ok(()) }
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/// ```
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pub fn save_to_matrix_market_str<T, S>(
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sparse_matrix: &S,
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@ -1482,6 +1484,7 @@ where
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/// Examples
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/// --------
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/// ```no_run
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/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
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/// use nalgebra_sparse::io::{save_to_matrix_market_file,load_coo_from_matrix_market_str};
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/// let str = r#"
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/// %%matrixmarket matrix coordinate integer general
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@ -1489,8 +1492,9 @@ where
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/// 1 1 10
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/// 2 3 5
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/// "#;
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/// let matrix = load_coo_from_matrix_market_str::<i32>(&str).unwrap();
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/// save_to_matrix_market_file(&matrix,"path/to/matrix.mtx").unwrap();
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/// let matrix = load_coo_from_matrix_market_str::<i32>(&str)?;
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/// save_to_matrix_market_file(&matrix,"path/to/matrix.mtx")?;
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/// # Ok(()) }
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/// ```
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pub fn save_to_matrix_market_file<T, S, P>(
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sparse_matrix: &S,
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