Add Mat_::at_row()

Author: twistedfall

src/manual/core/mat/mat_.rs

@@ -95,6 +95,12 @@ impl<T: DataType> Mat_<T> {
 		self.at_2d(pt.y, pt.x)
 	}
 
+	/// See [Mat::at_row]
+	#[inline]
+	pub fn at_row(&self, row: i32) -> Result<&[T]> {
+		match_indices(self, &[row, 0]).and_then(|_| unsafe { self.at_row_unchecked(row) })
+	}
+
 	/// See [Mat::at_mut]
 	#[inline]
 	pub fn at_mut(&mut self, i0: i32) -> Result<&mut T> {
@@ -129,6 +135,13 @@ impl<T: DataType> Mat_<T> {
 		self.at_2d_mut(pt.y, pt.x)
 	}
 
+	/// See [Mat::at_row_mut]
+	#[inline]
+	pub fn at_row_mut(&mut self, row: i32) -> Result<&mut [T]> {
+		match_indices(self, &[row, 0])?;
+		unsafe { self.at_row_unchecked_mut(row) }
+	}
+
 	/// See [Mat::data_typed]
 	#[inline]
 	pub fn data_typed(&self) -> Result<&[T]> {