mul_matrix_inplace()

void Chusov::Math::mul_matrix_inplace	(	ValueType *	left_column_matrix,
		const ValueType *	right_column_matrix,
		std::size_t	left_rows,
		std::size_t	left_columns_right_rows,
		std::size_t	right_columns
	)

Performs a multiplication of two matrices represented by two-dimensional column-major arrays and writes the result in place of the left multiplicand.

Template Parameters

ValueType

A type of a matrix element.

Parameters

[in,out]	left_column_matrix	A pointer to a buffer, that on input contains elements of the left multiplicand which is a column-major matrix of left_columns_right_rows by left_rows elements. On output the buffer contains the product of size left_rows * right_columns. Therefore, the function assumes that left_columns_right_rows <= right_columns.
[in]	right_column_matrix	A pointer to a buffer holding the right column-major matrix multiplicand of right_columns by left_columns_right_rows elements.
	left_rows	A number of rows in the left multiplicand.
	left_columns_right_rows	A number of columns in the left multiplicand and a number of rows in the right multiplicand. The function assumes that left_columns_right_rows <= right_columns.
	right_columns	A number of columns in the right matrix multiplicand.

Exceptions

std::bad_alloc	The function was unable to allocate memory necessary to perform the in-place multiplication.
Any	exceptions that originate from addition, multiplication or assignment of ValueType scalars.

To multiply matrices writing the difference in place of the second operand rather than the first one, use mul_matrix_inplace_rev. To write the product to a buffer different from buffers of both of the operands, use either mul_matrix_copy, to replace some other existing matrix with the product, or mul_matrix_construct to construct the result of multiplication in an uninitialized buffer.