LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
 All Classes Files Functions Variables Typedefs Macros
lapacke_csteqr_work.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_csteqr_work.c:

Go to the source code of this file.

Functions/Subroutines

lapack_int LAPACKE_csteqr_work (int matrix_order, char compz, lapack_int n, float *d, float *e, lapack_complex_float *z, lapack_int ldz, float *work)

Function/Subroutine Documentation

lapack_int LAPACKE_csteqr_work ( int  matrix_order,
char  compz,
lapack_int  n,
float *  d,
float *  e,
lapack_complex_float z,
lapack_int  ldz,
float *  work 
)

Definition at line 36 of file lapacke_csteqr_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_csteqr( &compz, &n, d, e, z, &ldz, work, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldz_t = MAX(1,n);
lapack_complex_float* z_t = NULL;
/* Check leading dimension(s) */
if( ldz < n ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
ldz_t * MAX(1,n) );
if( z_t == NULL ) {
goto exit_level_0;
}
}
/* Transpose input matrices */
if( LAPACKE_lsame( compz, 'v' ) ) {
LAPACKE_cge_trans( matrix_order, n, n, z, ldz, z_t, ldz_t );
}
/* Call LAPACK function and adjust info */
LAPACK_csteqr( &compz, &n, d, e, z_t, &ldz_t, work, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
}
/* Release memory and exit */
if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
LAPACKE_free( z_t );
}
exit_level_0:
LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
}
return info;
}

Here is the call graph for this function:

Here is the caller graph for this function: