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//------------------------------------------------------------------------------
// GrB_Vector_new: create a new vector
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// The new vector is n-by-1, with no entries in it.
// A->p is size 2 and all zero. Contents A->x and A->i are NULL.
// If this method fails, *v is set to NULL. Vectors are not hypersparse,
// so format is standard CSC, and A->h is NULL.
#include "GB.h"
#define GB_FREE_ALL GB_Matrix_free ((GrB_Matrix *) v) ;
GrB_Info GrB_Vector_new // create a new vector with no entries
(
GrB_Vector *v, // handle of vector to create
GrB_Type type, // type of vector to create
uint64_t n // dimension is n-by-1
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GrB_Info info ;
GB_CHECK_INIT ;
GB_RETURN_IF_NULL (v) ;
(*v) = NULL ;
GB_RETURN_IF_NULL_OR_FAULTY (type) ;
if (n > GB_NMAX)
{
// problem too large
return (GrB_INVALID_VALUE) ;
}
//--------------------------------------------------------------------------
// create the vector
//--------------------------------------------------------------------------
int64_t vlen = (int64_t) n ;
// determine the p_is_32, j_is_32, and i_is_32 settings for the new vector
bool Vp_is_32, Vj_is_32, Vi_is_32 ;
GB_determine_pji_is_32 (&Vp_is_32, &Vj_is_32, &Vi_is_32,
GxB_SPARSE, 1, vlen, 1, NULL) ;
GB_OK (GB_new ((GrB_Matrix *) v, // new user header
type, vlen, 1, GB_ph_calloc,
true, // a GrB_Vector is always held by-column
GxB_SPARSE, GB_Global_hyper_switch_get ( ), 1,
Vp_is_32, Vj_is_32, Vi_is_32)) ;
return (GrB_SUCCESS) ;
}
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