shsein_1.c

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/*  Contents: test routine for C interface to LAPACK
*   Author: Intel Corporation
*   Created in March, 2010
*
* Purpose
*
* shsein_1 is the test program for the C interface to LAPACK
* routine shsein
* The program doesn't require an input, the input data is hardcoded in the
* test program.
* The program tests the C interface in the four combinations:
*   1) column-major layout, middle-level interface
*   2) column-major layout, high-level interface
*   3) row-major layout, middle-level interface
*   4) row-major layout, high-level interface
* The output of the C interface function is compared to those obtained from
* the corresponiding LAPACK routine with the same input data, and the
* comparison diagnostics is then printed on the standard output having PASSED
* keyword if the test is passed, and FAILED keyword if the test isn't passed.
*****************************************************************************/
#include <stdio.h>
#include "lapacke.h"
#include "lapacke_utils.h"
#include "test_utils.h"

static void init_scalars_shsein( char *job, char *eigsrc, char *initv,
                                 lapack_int *n, lapack_int *ldh,
                                 lapack_int *ldvl, lapack_int *ldvr,
                                 lapack_int *mm );
static void init_select( lapack_int size, lapack_int *select );
static void init_h( lapack_int size, float *h );
static void init_wr( lapack_int size, float *wr );
static void init_wi( lapack_int size, float *wi );
static void init_vl( lapack_int size, float *vl );
static void init_vr( lapack_int size, float *vr );
static void init_work( lapack_int size, float *work );
static void init_ifaill( lapack_int size, lapack_int *ifaill );
static void init_ifailr( lapack_int size, lapack_int *ifailr );
static int compare_shsein( lapack_int *select, lapack_int *select_i, float *wr,
                           float *wr_i, float *vl, float *vl_i, float *vr,
                           float *vr_i, lapack_int m, lapack_int m_i,
                           lapack_int *ifaill, lapack_int *ifaill_i,
                           lapack_int *ifailr, lapack_int *ifailr_i,
                           lapack_int info, lapack_int info_i, char job,
                           lapack_int ldvl, lapack_int ldvr, lapack_int mm,
                           lapack_int n );

int main(void)
{
    /* Local scalars */
    char job, job_i;
    char eigsrc, eigsrc_i;
    char initv, initv_i;
    lapack_int n, n_i;
    lapack_int ldh, ldh_i;
    lapack_int ldh_r;
    lapack_int ldvl, ldvl_i;
    lapack_int ldvl_r;
    lapack_int ldvr, ldvr_i;
    lapack_int ldvr_r;
    lapack_int mm, mm_i;
    lapack_int m, m_i;
    lapack_int info, info_i;
    lapack_int i;
    int failed;

    /* Local arrays */
    lapack_int *select = NULL, *select_i = NULL;
    float *h = NULL, *h_i = NULL;
    float *wr = NULL, *wr_i = NULL;
    float *wi = NULL, *wi_i = NULL;
    float *vl = NULL, *vl_i = NULL;
    float *vr = NULL, *vr_i = NULL;
    float *work = NULL, *work_i = NULL;
    lapack_int *ifaill = NULL, *ifaill_i = NULL;
    lapack_int *ifailr = NULL, *ifailr_i = NULL;
    lapack_int *select_save = NULL;
    float *wr_save = NULL;
    float *vl_save = NULL;
    float *vr_save = NULL;
    lapack_int *ifaill_save = NULL;
    lapack_int *ifailr_save = NULL;
    float *h_r = NULL;
    float *vl_r = NULL;
    float *vr_r = NULL;

    /* Iniitialize the scalar parameters */
    init_scalars_shsein( &job, &eigsrc, &initv, &n, &ldh, &ldvl, &ldvr, &mm );
    ldh_r = n+2;
    ldvl_r = mm+2;
    ldvr_r = mm+2;
    job_i = job;
    eigsrc_i = eigsrc;
    initv_i = initv;
    n_i = n;
    ldh_i = ldh;
    ldvl_i = ldvl;
    ldvr_i = ldvr;
    mm_i = mm;

    /* Allocate memory for the LAPACK routine arrays */
    select = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
    h = (float *)LAPACKE_malloc( ldh*n * sizeof(float) );
    wr = (float *)LAPACKE_malloc( n * sizeof(float) );
    wi = (float *)LAPACKE_malloc( n * sizeof(float) );
    vl = (float *)LAPACKE_malloc( ldvl*mm * sizeof(float) );
    vr = (float *)LAPACKE_malloc( ldvr*mm * sizeof(float) );
    work = (float *)LAPACKE_malloc( (((n+2)*n)) * sizeof(float) );
    ifaill = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );
    ifailr = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );

    /* Allocate memory for the C interface function arrays */
    select_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
    h_i = (float *)LAPACKE_malloc( ldh*n * sizeof(float) );
    wr_i = (float *)LAPACKE_malloc( n * sizeof(float) );
    wi_i = (float *)LAPACKE_malloc( n * sizeof(float) );
    vl_i = (float *)LAPACKE_malloc( ldvl*mm * sizeof(float) );
    vr_i = (float *)LAPACKE_malloc( ldvr*mm * sizeof(float) );
    work_i = (float *)LAPACKE_malloc( (((n+2)*n)) * sizeof(float) );
    ifaill_i = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );
    ifailr_i = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );

    /* Allocate memory for the backup arrays */
    select_save = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
    wr_save = (float *)LAPACKE_malloc( n * sizeof(float) );
    vl_save = (float *)LAPACKE_malloc( ldvl*mm * sizeof(float) );
    vr_save = (float *)LAPACKE_malloc( ldvr*mm * sizeof(float) );
    ifaill_save = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );
    ifailr_save = (lapack_int *)LAPACKE_malloc( mm * sizeof(lapack_int) );

    /* Allocate memory for the row-major arrays */
    h_r = (float *)LAPACKE_malloc( n*(n+2) * sizeof(float) );
    vl_r = (float *)LAPACKE_malloc( n*(mm+2) * sizeof(float) );
    vr_r = (float *)LAPACKE_malloc( n*(mm+2) * sizeof(float) );

    /* Initialize input arrays */
    init_select( n, select );
    init_h( ldh*n, h );
    init_wr( n, wr );
    init_wi( n, wi );
    init_vl( ldvl*mm, vl );
    init_vr( ldvr*mm, vr );
    init_work( ((n+2)*n), work );
    init_ifaill( mm, ifaill );
    init_ifailr( mm, ifailr );

    /* Backup the ouptut arrays */
    for( i = 0; i < n; i++ ) {
        select_save[i] = select[i];
    }
    for( i = 0; i < n; i++ ) {
        wr_save[i] = wr[i];
    }
    for( i = 0; i < ldvl*mm; i++ ) {
        vl_save[i] = vl[i];
    }
    for( i = 0; i < ldvr*mm; i++ ) {
        vr_save[i] = vr[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifaill_save[i] = ifaill[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifailr_save[i] = ifailr[i];
    }

    /* Call the LAPACK routine */
    shsein_( &job, &eigsrc, &initv, select, &n, h, &ldh, wr, wi, vl, &ldvl, vr,
             &ldvr, &mm, &m, work, ifaill, ifailr, &info );

    /* Initialize input data, call the column-major middle-level
     * interface to LAPACK routine and check the results */
    for( i = 0; i < n; i++ ) {
        select_i[i] = select_save[i];
    }
    for( i = 0; i < ldh*n; i++ ) {
        h_i[i] = h[i];
    }
    for( i = 0; i < n; i++ ) {
        wr_i[i] = wr_save[i];
    }
    for( i = 0; i < n; i++ ) {
        wi_i[i] = wi[i];
    }
    for( i = 0; i < ldvl*mm; i++ ) {
        vl_i[i] = vl_save[i];
    }
    for( i = 0; i < ldvr*mm; i++ ) {
        vr_i[i] = vr_save[i];
    }
    for( i = 0; i < ((n+2)*n); i++ ) {
        work_i[i] = work[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifaill_i[i] = ifaill_save[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifailr_i[i] = ifailr_save[i];
    }
    info_i = LAPACKE_shsein_work( LAPACK_COL_MAJOR, job_i, eigsrc_i, initv_i,
                                  select_i, n_i, h_i, ldh_i, wr_i, wi_i, vl_i,
                                  ldvl_i, vr_i, ldvr_i, mm_i, &m_i, work_i,
                                  ifaill_i, ifailr_i );

    failed = compare_shsein( select, select_i, wr, wr_i, vl, vl_i, vr, vr_i, m,
                             m_i, ifaill, ifaill_i, ifailr, ifailr_i, info,
                             info_i, job, ldvl, ldvr, mm, n );
    if( failed == 0 ) {
        printf( "PASSED: column-major middle-level interface to shsein\n" );
    } else {
        printf( "FAILED: column-major middle-level interface to shsein\n" );
    }

    /* Initialize input data, call the column-major high-level
     * interface to LAPACK routine and check the results */
    for( i = 0; i < n; i++ ) {
        select_i[i] = select_save[i];
    }
    for( i = 0; i < ldh*n; i++ ) {
        h_i[i] = h[i];
    }
    for( i = 0; i < n; i++ ) {
        wr_i[i] = wr_save[i];
    }
    for( i = 0; i < n; i++ ) {
        wi_i[i] = wi[i];
    }
    for( i = 0; i < ldvl*mm; i++ ) {
        vl_i[i] = vl_save[i];
    }
    for( i = 0; i < ldvr*mm; i++ ) {
        vr_i[i] = vr_save[i];
    }
    for( i = 0; i < ((n+2)*n); i++ ) {
        work_i[i] = work[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifaill_i[i] = ifaill_save[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifailr_i[i] = ifailr_save[i];
    }
    info_i = LAPACKE_shsein( LAPACK_COL_MAJOR, job_i, eigsrc_i, initv_i,
                             select_i, n_i, h_i, ldh_i, wr_i, wi_i, vl_i,
                             ldvl_i, vr_i, ldvr_i, mm_i, &m_i, ifaill_i,
                             ifailr_i );

    failed = compare_shsein( select, select_i, wr, wr_i, vl, vl_i, vr, vr_i, m,
                             m_i, ifaill, ifaill_i, ifailr, ifailr_i, info,
                             info_i, job, ldvl, ldvr, mm, n );
    if( failed == 0 ) {
        printf( "PASSED: column-major high-level interface to shsein\n" );
    } else {
        printf( "FAILED: column-major high-level interface to shsein\n" );
    }

    /* Initialize input data, call the row-major middle-level
     * interface to LAPACK routine and check the results */
    for( i = 0; i < n; i++ ) {
        select_i[i] = select_save[i];
    }
    for( i = 0; i < ldh*n; i++ ) {
        h_i[i] = h[i];
    }
    for( i = 0; i < n; i++ ) {
        wr_i[i] = wr_save[i];
    }
    for( i = 0; i < n; i++ ) {
        wi_i[i] = wi[i];
    }
    for( i = 0; i < ldvl*mm; i++ ) {
        vl_i[i] = vl_save[i];
    }
    for( i = 0; i < ldvr*mm; i++ ) {
        vr_i[i] = vr_save[i];
    }
    for( i = 0; i < ((n+2)*n); i++ ) {
        work_i[i] = work[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifaill_i[i] = ifaill_save[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifailr_i[i] = ifailr_save[i];
    }

    LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, h_i, ldh, h_r, n+2 );
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, mm, vl_i, ldvl, vl_r, mm+2 );
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, mm, vr_i, ldvr, vr_r, mm+2 );
    }
    info_i = LAPACKE_shsein_work( LAPACK_ROW_MAJOR, job_i, eigsrc_i, initv_i,
                                  select_i, n_i, h_r, ldh_r, wr_i, wi_i, vl_r,
                                  ldvl_r, vr_r, ldvr_r, mm_i, &m_i, work_i,
                                  ifaill_i, ifailr_i );

    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        LAPACKE_sge_trans( LAPACK_ROW_MAJOR, n, mm, vl_r, mm+2, vl_i, ldvl );
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        LAPACKE_sge_trans( LAPACK_ROW_MAJOR, n, mm, vr_r, mm+2, vr_i, ldvr );
    }

    failed = compare_shsein( select, select_i, wr, wr_i, vl, vl_i, vr, vr_i, m,
                             m_i, ifaill, ifaill_i, ifailr, ifailr_i, info,
                             info_i, job, ldvl, ldvr, mm, n );
    if( failed == 0 ) {
        printf( "PASSED: row-major middle-level interface to shsein\n" );
    } else {
        printf( "FAILED: row-major middle-level interface to shsein\n" );
    }

    /* Initialize input data, call the row-major high-level
     * interface to LAPACK routine and check the results */
    for( i = 0; i < n; i++ ) {
        select_i[i] = select_save[i];
    }
    for( i = 0; i < ldh*n; i++ ) {
        h_i[i] = h[i];
    }
    for( i = 0; i < n; i++ ) {
        wr_i[i] = wr_save[i];
    }
    for( i = 0; i < n; i++ ) {
        wi_i[i] = wi[i];
    }
    for( i = 0; i < ldvl*mm; i++ ) {
        vl_i[i] = vl_save[i];
    }
    for( i = 0; i < ldvr*mm; i++ ) {
        vr_i[i] = vr_save[i];
    }
    for( i = 0; i < ((n+2)*n); i++ ) {
        work_i[i] = work[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifaill_i[i] = ifaill_save[i];
    }
    for( i = 0; i < mm; i++ ) {
        ifailr_i[i] = ifailr_save[i];
    }

    /* Init row_major arrays */
    LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, h_i, ldh, h_r, n+2 );
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, mm, vl_i, ldvl, vl_r, mm+2 );
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, mm, vr_i, ldvr, vr_r, mm+2 );
    }
    info_i = LAPACKE_shsein( LAPACK_ROW_MAJOR, job_i, eigsrc_i, initv_i,
                             select_i, n_i, h_r, ldh_r, wr_i, wi_i, vl_r,
                             ldvl_r, vr_r, ldvr_r, mm_i, &m_i, ifaill_i,
                             ifailr_i );

    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        LAPACKE_sge_trans( LAPACK_ROW_MAJOR, n, mm, vl_r, mm+2, vl_i, ldvl );
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        LAPACKE_sge_trans( LAPACK_ROW_MAJOR, n, mm, vr_r, mm+2, vr_i, ldvr );
    }

    failed = compare_shsein( select, select_i, wr, wr_i, vl, vl_i, vr, vr_i, m,
                             m_i, ifaill, ifaill_i, ifailr, ifailr_i, info,
                             info_i, job, ldvl, ldvr, mm, n );
    if( failed == 0 ) {
        printf( "PASSED: row-major high-level interface to shsein\n" );
    } else {
        printf( "FAILED: row-major high-level interface to shsein\n" );
    }

    /* Release memory */
    if( select != NULL ) {
        LAPACKE_free( select );
    }
    if( select_i != NULL ) {
        LAPACKE_free( select_i );
    }
    if( select_save != NULL ) {
        LAPACKE_free( select_save );
    }
    if( h != NULL ) {
        LAPACKE_free( h );
    }
    if( h_i != NULL ) {
        LAPACKE_free( h_i );
    }
    if( h_r != NULL ) {
        LAPACKE_free( h_r );
    }
    if( wr != NULL ) {
        LAPACKE_free( wr );
    }
    if( wr_i != NULL ) {
        LAPACKE_free( wr_i );
    }
    if( wr_save != NULL ) {
        LAPACKE_free( wr_save );
    }
    if( wi != NULL ) {
        LAPACKE_free( wi );
    }
    if( wi_i != NULL ) {
        LAPACKE_free( wi_i );
    }
    if( vl != NULL ) {
        LAPACKE_free( vl );
    }
    if( vl_i != NULL ) {
        LAPACKE_free( vl_i );
    }
    if( vl_r != NULL ) {
        LAPACKE_free( vl_r );
    }
    if( vl_save != NULL ) {
        LAPACKE_free( vl_save );
    }
    if( vr != NULL ) {
        LAPACKE_free( vr );
    }
    if( vr_i != NULL ) {
        LAPACKE_free( vr_i );
    }
    if( vr_r != NULL ) {
        LAPACKE_free( vr_r );
    }
    if( vr_save != NULL ) {
        LAPACKE_free( vr_save );
    }
    if( work != NULL ) {
        LAPACKE_free( work );
    }
    if( work_i != NULL ) {
        LAPACKE_free( work_i );
    }
    if( ifaill != NULL ) {
        LAPACKE_free( ifaill );
    }
    if( ifaill_i != NULL ) {
        LAPACKE_free( ifaill_i );
    }
    if( ifaill_save != NULL ) {
        LAPACKE_free( ifaill_save );
    }
    if( ifailr != NULL ) {
        LAPACKE_free( ifailr );
    }
    if( ifailr_i != NULL ) {
        LAPACKE_free( ifailr_i );
    }
    if( ifailr_save != NULL ) {
        LAPACKE_free( ifailr_save );
    }

    return 0;
}

/* Auxiliary function: shsein scalar parameters initialization */
static void init_scalars_shsein( char *job, char *eigsrc, char *initv,
                                 lapack_int *n, lapack_int *ldh,
                                 lapack_int *ldvl, lapack_int *ldvr,
                                 lapack_int *mm )
{
    *job = 'R';
    *eigsrc = 'Q';
    *initv = 'N';
    *n = 4;
    *ldh = 8;
    *ldvl = 8;
    *ldvr = 8;
    *mm = 4;

    return;
}

/* Auxiliary functions: shsein array parameters initialization */
static void init_select( lapack_int size, lapack_int *select ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        select[i] = 0;
    }
    select[0] = 0;
    select[1] = -1;
    select[2] = -1;
    select[3] = -1;
}
static void init_h( lapack_int size, float *h ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        h[i] = 0;
    }
    h[0] = 3.499999940e-001;  /* h[0,0] */
    h[8] = -1.159524173e-001;  /* h[0,1] */
    h[16] = -3.886010647e-001;  /* h[0,2] */
    h[24] = -2.941840589e-001;  /* h[0,3] */
    h[1] = -5.140038729e-001;  /* h[1,0] */
    h[9] = 1.224867105e-001;  /* h[1,1] */
    h[17] = 1.003598347e-001;  /* h[1,2] */
    h[25] = 1.125619039e-001;  /* h[1,3] */
    h[2] = -7.284721732e-001;  /* h[2,0] */
    h[10] = 6.442636251e-001;  /* h[2,1] */
    h[18] = -1.357001662e-001;  /* h[2,2] */
    h[26] = -9.768159688e-002;  /* h[2,3] */
    h[3] = 4.139046371e-001;  /* h[3,0] */
    h[11] = -1.665445715e-001;  /* h[3,1] */
    h[19] = 4.262443781e-001;  /* h[3,2] */
    h[27] = 1.632134318e-001;  /* h[3,3] */
}
static void init_wr( lapack_int size, float *wr ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        wr[i] = 0;
    }
    wr[0] = 7.994821668e-001;
    wr[1] = -9.941247106e-002;
    wr[2] = -9.941247106e-002;
    wr[3] = -1.006571874e-001;
}
static void init_wi( lapack_int size, float *wi ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        wi[i] = 0;
    }
    wi[0] = 0.000000000e+000;
    wi[1] = 4.007923901e-001;
    wi[2] = -4.007923901e-001;
    wi[3] = 0.000000000e+000;
}
static void init_vl( lapack_int size, float *vl ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        vl[i] = 0;
    }
    vl[0] = 0.000000000e+000;  /* vl[0,0] */
    vl[8] = 0.000000000e+000;  /* vl[0,1] */
    vl[16] = 0.000000000e+000;  /* vl[0,2] */
    vl[24] = 0.000000000e+000;  /* vl[0,3] */
    vl[1] = 0.000000000e+000;  /* vl[1,0] */
    vl[9] = 0.000000000e+000;  /* vl[1,1] */
    vl[17] = 0.000000000e+000;  /* vl[1,2] */
    vl[25] = 0.000000000e+000;  /* vl[1,3] */
    vl[2] = 0.000000000e+000;  /* vl[2,0] */
    vl[10] = 0.000000000e+000;  /* vl[2,1] */
    vl[18] = 0.000000000e+000;  /* vl[2,2] */
    vl[26] = 0.000000000e+000;  /* vl[2,3] */
    vl[3] = 0.000000000e+000;  /* vl[3,0] */
    vl[11] = 0.000000000e+000;  /* vl[3,1] */
    vl[19] = 0.000000000e+000;  /* vl[3,2] */
    vl[27] = 0.000000000e+000;  /* vl[3,3] */
}
static void init_vr( lapack_int size, float *vr ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        vr[i] = 0;
    }
    vr[0] = 0.000000000e+000;  /* vr[0,0] */
    vr[8] = 0.000000000e+000;  /* vr[0,1] */
    vr[16] = 0.000000000e+000;  /* vr[0,2] */
    vr[24] = 0.000000000e+000;  /* vr[0,3] */
    vr[1] = 0.000000000e+000;  /* vr[1,0] */
    vr[9] = 0.000000000e+000;  /* vr[1,1] */
    vr[17] = 0.000000000e+000;  /* vr[1,2] */
    vr[25] = 0.000000000e+000;  /* vr[1,3] */
    vr[2] = 0.000000000e+000;  /* vr[2,0] */
    vr[10] = 0.000000000e+000;  /* vr[2,1] */
    vr[18] = 0.000000000e+000;  /* vr[2,2] */
    vr[26] = 0.000000000e+000;  /* vr[2,3] */
    vr[3] = 0.000000000e+000;  /* vr[3,0] */
    vr[11] = 0.000000000e+000;  /* vr[3,1] */
    vr[19] = 0.000000000e+000;  /* vr[3,2] */
    vr[27] = 0.000000000e+000;  /* vr[3,3] */
}
static void init_work( lapack_int size, float *work ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        work[i] = 0;
    }
}
static void init_ifaill( lapack_int size, lapack_int *ifaill ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        ifaill[i] = 0;
    }
}
static void init_ifailr( lapack_int size, lapack_int *ifailr ) {
    lapack_int i;
    for( i = 0; i < size; i++ ) {
        ifailr[i] = 0;
    }
}

/* Auxiliary function: C interface to shsein results check */
/* Return value: 0 - test is passed, non-zero - test is failed */
static int compare_shsein( lapack_int *select, lapack_int *select_i, float *wr,
                           float *wr_i, float *vl, float *vl_i, float *vr,
                           float *vr_i, lapack_int m, lapack_int m_i,
                           lapack_int *ifaill, lapack_int *ifaill_i,
                           lapack_int *ifailr, lapack_int *ifailr_i,
                           lapack_int info, lapack_int info_i, char job,
                           lapack_int ldvl, lapack_int ldvr, lapack_int mm,
                           lapack_int n )
{
    lapack_int i;
    int failed = 0;
    for( i = 0; i < n; i++ ) {
        failed += (select[i] == select_i[i]) ? 0 : 1;
    }
    for( i = 0; i < n; i++ ) {
        failed += compare_floats(wr[i],wr_i[i]);
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        for( i = 0; i < ldvl*mm; i++ ) {
            failed += compare_floats(vl[i],vl_i[i]);
        }
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        for( i = 0; i < ldvr*mm; i++ ) {
            failed += compare_floats(vr[i],vr_i[i]);
        }
    }
    failed += (m == m_i) ? 0 : 1;
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
        for( i = 0; i < mm; i++ ) {
            failed += (ifaill[i] == ifaill_i[i]) ? 0 : 1;
        }
    }
    if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
        for( i = 0; i < mm; i++ ) {
            failed += (ifailr[i] == ifailr_i[i]) ? 0 : 1;
        }
    }
    failed += (info == info_i) ? 0 : 1;
    if( info != 0 || info_i != 0 ) {
        printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
    }

    return failed;
}