cdflib.setChecksum

Specify checksum mode

Syntax

cdflib.setChecksum(cdfId,mode)

cdflib.setChecksum(cdfId,mode) specifies the checksum mode of a Common Data Format (CDF) file.

cdfId

Identifier of a CDF file, returned by a call to cdflib.create or cdflib.open.

mode

One of the following character vectors or string scalars, or its numeric equivalent.

`'MD5_CHECKSUM'`	Sets file checksum to MD5 checksum.
`'NO_CHECKSUM'`	File does not use a checksum.

To get the numeric equivalent of these constants, use cdflib.getConstantValue.

Create a CDF file and set the checksum mode. To run this example, you must be in a writable folder.

cdfId = cdflib.create("your_file.cdf");

% Check initial value of checksum
mode = cdflib.getChecksum(cdfId)

mode =

    'NO_CHECKSUM'

% Specify a new value for checksum
cdflib.setChecksum(cdfId,"MD5_CHECKSUM")

% Verify the setting 
mode = cdflib.getChecksum(cdfId)

mode =

    'MD5_CHECKSUM'

% Clean up
cdflib.delete(cdfId)
clear cdfId

This function corresponds to the CDF library C API routine CDFsetChecksum.
To use this function, you must be familiar with the CDF C interface. You can access the CDF documentation at the CDF website.