matrixUpdate

Functions
template<domain D :shared3p >
D float32	matrixUpdate (D float32[[2]] mat, D uint rowIndex, D uint columnIndex, D float32 newValue)
template<domain D :shared3p >
D float64	matrixUpdate (D float64[[2]] mat, D uint rowIndex, D uint columnIndex, D float64 newValue)

Detailed Description

Function for obliviously updating a value in the input matrix.

Note

D - shared3p protection domain

Supported types - float32 / float64

Parameters

mat	- a matrix of supported type
rowIndex	- an uint type scalar for specifying the row in the input matrix
colIndex	- an uint type scalar for specifying the column in the input matrix
newValue	- a new scalar value

Returns

returns a matrix where the element at row rowIndex and column colIndex has been replaced with newValue

Leakage

None

Function Documentation

matrixUpdate() [1/2]

D float32 matrixUpdate	(	D float32[[2]]	mat,
		D uint	rowIndex,
		D uint	columnIndex,
		D float32	newValue
	)

matrixUpdate() [2/2]

D float64 matrixUpdate	(	D float64[[2]]	mat,
		D uint	rowIndex,
		D uint	columnIndex,
		D float64	newValue
	)