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//------------------------------------------------------------------------------
// GrB_Vector_new: create a new vector
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, 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"
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
GrB_Index n // dimension is n-by-1
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_WHERE1 ("GrB_Vector_new (&v, type, n)") ;
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
//--------------------------------------------------------------------------
GrB_Info info ;
int64_t vlen = (int64_t) n ;
info = GB_new ((GrB_Matrix *) v, // new user header
type, vlen, 1, GB_Ap_calloc,
true, // a GrB_Vector is always held by-column
GxB_SPARSE, GB_Global_hyper_switch_get ( ), 1, Context) ;
ASSERT (GB_IMPLIES (info == GrB_SUCCESS, GB_VECTOR_OK (*v))) ;
return (info) ;
}
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