LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dlarfg()

lapack_int LAPACKE_dlarfg ( lapack_int  n,
double *  alpha,
double *  x,
lapack_int  incx,
double *  tau 
)

Definition at line 36 of file lapacke_dlarfg.c.

38 {
39 #ifndef LAPACK_DISABLE_NAN_CHECK
40  if( LAPACKE_get_nancheck() ) {
41  /* Optionally check input matrices for NaNs */
42  if( LAPACKE_d_nancheck( 1, alpha, 1 ) ) {
43  return -2;
44  }
45  if( LAPACKE_d_nancheck( 1+(n-2)*ABS(incx), x, incx ) ) {
46  return -3;
47  }
48  }
49 #endif
50  return LAPACKE_dlarfg_work( n, alpha, x, incx, tau );
51 }
#define ABS(x)
Definition: lapacke_utils.h:44
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_int LAPACKE_dlarfg_work(lapack_int n, double *alpha, double *x, lapack_int incx, double *tau)
int LAPACKE_get_nancheck()
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