Determine whether an identifier is valid

Source: R/H5I.R

An identifier is no longer valid after it has been closed.

H5Iis_valid(h5identifier)

Arguments

h5identifier

Object of class H5IdComponent.

Value

A logical of length 1. TRUE is the identifier is valid, FALSE if not.

Examples


h5file <- system.file("testfiles", "h5ex_t_array.h5", package = "rhdf5")
fid <- H5Fopen(h5file)

## test whether the identifer to the opened file is valid
H5Iis_valid(fid)
#> [1] TRUE

## the file ID is no longer valid after it has been closed
H5Fclose(fid)
H5Iis_valid(fid)
#> [1] FALSE