LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cpptrf_work()

lapack_int LAPACKE_cpptrf_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_complex_float ap 
)

Definition at line 36 of file lapacke_cpptrf_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_cpptrf( &uplo, &n, ap, &info );
43  if( info < 0 ) {
44  info = info - 1;
45  }
46  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47  lapack_complex_float* ap_t = NULL;
48  /* Allocate memory for temporary array(s) */
49  ap_t = (lapack_complex_float*)
51  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
52  if( ap_t == NULL ) {
54  goto exit_level_0;
55  }
56  /* Transpose input matrices */
57  LAPACKE_cpp_trans( matrix_layout, uplo, n, ap, ap_t );
58  /* Call LAPACK function and adjust info */
59  LAPACK_cpptrf( &uplo, &n, ap_t, &info );
60  if( info < 0 ) {
61  info = info - 1;
62  }
63  /* Transpose output matrices */
64  LAPACKE_cpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
65  /* Release memory and exit */
66  LAPACKE_free( ap_t );
67 exit_level_0:
68  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
69  LAPACKE_xerbla( "LAPACKE_cpptrf_work", info );
70  }
71  } else {
72  info = -1;
73  LAPACKE_xerbla( "LAPACKE_cpptrf_work", info );
74  }
75  return info;
76 }
void LAPACKE_cpp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
void LAPACK_cpptrf(char *uplo, lapack_int *n, lapack_complex_float *ap, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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