mlib_MatrixUnit_U8(3MLIB) mediaLib Library Functions mlib_MatrixUnit_U8(3MLIB)
NAME
mlib_MatrixUnit_U8, mlib_MatrixUnit_U8C, mlib_MatrixUnit_S8, mlib_MatrixUnit_S8C, mlib_MatrixUnit_S16, mlib_MatrixUnit_S16C, mlib_MatrixU-
nit_S32, mlib_MatrixUnit_S32C - Unit matrix generation
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_MatrixUnit_U8(mlib_u8 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_U8C(mlib_u8 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S8(mlib_s8 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S8C(mlib_s8 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S16(mlib_s16 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S16C(mlib_s16 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S32(mlib_s32 *z, mlib_s32 n);
mlib_status mlib_MatrixUnit_S32C(mlib_s32 *z, mlib_s32 n);
DESCRIPTION
Each of these functions sets the values for a unit matrix.
For real data, the following equation is used:
z[i*n + j] = 1 if i == j
z[i*n + j] = 0 if i != j
where i = 0, 1, ..., (n - 1); j = 0, 1, ..., (n - 1).
For complex data, the following equation is used:
z[2*(i*n + j)] = 1 if i == j
z[2*(i*n + j)] = 0 if i != j
z[2*(i*n + j) + 1] = 0
where i = 0, 1, ..., (n - 1); j = 0, 1, ..., (n - 1).
PARAMETERS
Each of the functions takes the following arguments:
z Pointer to the destination matrix.
n Number of rows and columns in the matrix.
RETURN VALUES
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5)
SunOS 5.10 10 Nov 2004 mlib_MatrixUnit_U8(3MLIB)
