6.4.3 vsip_dchold_getattr_p - Get Cholesky Decomposition Attributes

typedef struct _vsip_chol_attr_f { 
  vsip_length n; 
  vsip_mat_uplo uplo; 
} vsip_chol_attr_f; 
 
typedef vsip_chol_attr_f vsip_cchol_attr_f; 
 
void vsip_chold_getattr_f(const vsip_chol_f *chold, vsip_chol_attr_f *attr); 
void vsip_cchold_getattr_f(const vsip_cchol_f *chold, vsip_cchol_attr_f *attr);

Description

This function retrieves the attributes of a Cholesky decomposition object and stores them in the provided structure.

Parameters

• const vsip_dchol_p* chold: Pointer to the Cholesky decomposition object.

• vsip_dchol_attr_p* attr: Pointer to the structure where attributes will be stored.

Example

vsip_chol_f *chold; 
vsip_chol_attr_f attr; 
 
// Create object 
chold = vsip_chold_create_f(VSIP_MAT_LOW, 100); 
 
// Get attributes 
vsip_chold_getattr_f(chold, &attr); 
 
printf("Cholesky decomposition attributes:\n"); 
printf("  Matrix size: %lu x %lu\n", attr.n, attr.n); 
printf("  Stored triangle: %s\n", 
       attr.uplo == VSIP_MAT_LOW ? "lower" : "upper"); 
 
// Destroy object 
vsip_chold_destroy_f(chold);