File: gb_mxarray_is_empty.c

package info (click to toggle)
suitesparse-graphblas 7.4.0%2Bdfsg-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 67,112 kB
  • sloc: ansic: 1,072,243; cpp: 8,081; sh: 512; makefile: 506; asm: 369; python: 125; awk: 10
file content (22 lines) | stat: -rw-r--r-- 694 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
//------------------------------------------------------------------------------
// gb_mxarray_is_empty: check if a built-in mxArray is empty
//------------------------------------------------------------------------------

// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

//------------------------------------------------------------------------------

#include "gb_interface.h"

bool gb_mxarray_is_empty    // true if built-in array is NULL, or 2D and 0-by-0
(
    const mxArray *S
)
{ 

    return ((S == NULL)
        || ((mxGetNumberOfDimensions (S) == 2) &&
            (mxGetM (S) == 0) && (mxGetN (S) == 0))) ;
}