LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_stgsyl.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_stgsyl.c:

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Functions/Subroutines

lapack_int LAPACKE_stgsyl (int matrix_order, char trans, lapack_int ijob, lapack_int m, lapack_int n, const float *a, lapack_int lda, const float *b, lapack_int ldb, float *c, lapack_int ldc, const float *d, lapack_int ldd, const float *e, lapack_int lde, float *f, lapack_int ldf, float *scale, float *dif)

Function/Subroutine Documentation

lapack_int LAPACKE_stgsyl ( int  matrix_order,
char  trans,
lapack_int  ijob,
lapack_int  m,
lapack_int  n,
const float *  a,
lapack_int  lda,
const float *  b,
lapack_int  ldb,
float *  c,
lapack_int  ldc,
const float *  d,
lapack_int  ldd,
const float *  e,
lapack_int  lde,
float *  f,
lapack_int  ldf,
float *  scale,
float *  dif 
)

Definition at line 36 of file lapacke_stgsyl.c.

{
lapack_int info = 0;
lapack_int lwork = -1;
lapack_int* iwork = NULL;
float* work = NULL;
float work_query;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_stgsyl", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_sge_nancheck( matrix_order, m, m, a, lda ) ) {
return -6;
}
if( LAPACKE_sge_nancheck( matrix_order, n, n, b, ldb ) ) {
return -8;
}
if( LAPACKE_sge_nancheck( matrix_order, m, n, c, ldc ) ) {
return -10;
}
if( LAPACKE_sge_nancheck( matrix_order, m, m, d, ldd ) ) {
return -12;
}
if( LAPACKE_sge_nancheck( matrix_order, n, n, e, lde ) ) {
return -14;
}
if( LAPACKE_sge_nancheck( matrix_order, m, n, f, ldf ) ) {
return -16;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,m+n+6) );
if( iwork == NULL ) {
goto exit_level_0;
}
/* Query optimal working array(s) size */
info = LAPACKE_stgsyl_work( matrix_order, trans, ijob, m, n, a, lda, b, ldb,
c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
&work_query, lwork, iwork );
if( info != 0 ) {
goto exit_level_1;
}
lwork = (lapack_int)work_query;
/* Allocate memory for work arrays */
work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
if( work == NULL ) {
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_stgsyl_work( matrix_order, trans, ijob, m, n, a, lda, b, ldb,
c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
work, lwork, iwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( iwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_stgsyl", info );
}
return info;
}

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