Cannot mmap datasets of type ComplexF32

[roflmaostc]

Hello,

the following with HDF5 v0.15.6 and Julia 1.6.2 happened:

using HDF5

fname = tempname()
fid = h5open(fname, "w")
g = create_group(fid, "mygroup")
mat = create_dataset(g, "mat", datatype(ComplexF32), dataspace(5,5))
for i in 1:5, j in 1:5
    mat[i, j] = randn(ComplexF32)
end
close(fid)

fid = h5open(fname, "r+")
# works
mat = read(fid["mygroup"]["mat"])

# does not
mat_mmap = HDF5.readmmap(fid["mygroup"]["mat"])

Thanks to #558 complex numbers work, but with readmmap it seems to fail.

julia> include("HDF5.jl")
mat = ComplexF32[1.3623464f0 + 0.6244532f0im -0.29518035f0 - 0.45002094f0im 0.039368484f0 + 0.35088688f0im -0.60823476f0 + 0.30127338f0im -1.0006275f0 - 0.8201217f0im; -1.4361695f0 + 0.6460856f0im -0.53106135f0 + 1.713218f0im -0.31101835f0 + 0.9580644f0im 0.9598781f0 - 0.24997331f0im 0.010050308f0 + 0.8048518f0im; -0.8531363f0 - 0.1344513f0im -0.16356188f0 - 0.9398935f0im -0.19551729f0 - 0.16608053f0im 0.7344293f0 + 0.55872333f0im -0.7306926f0 + 1.5917627f0im; -0.63949335f0 + 0.87596196f0im -0.32529232f0 + 0.37911814f0im -0.37411737f0 - 0.12143369f0im 0.33119792f0 - 0.15147632f0im -0.67340744f0 - 0.56344426f0im; 0.01321806f0 - 0.29816392f0im 0.3216847f0 - 0.20785226f0im -0.38204104f0 - 0.68331385f0im -0.22857241f0 - 0.007945157f0im -0.29809278f0 + 1.3333956f0im]
ERROR: LoadError: Cannot mmap datasets of type ComplexF32
Stacktrace:
 [1] error(s::String)
   @ Base ./error.jl:33
 [2] readmmap(obj::HDF5.Dataset)
   @ HDF5 ~/.julia/packages/HDF5/0iEnL/src/HDF5.jl:1497
 [3] top-level scope
   @ ~/HDF5.jl:18
 [4] include(fname::String)
   @ Base.MainInclude ./client.jl:444
 [5] top-level scope
   @ REPL[59]:1
in expression starting at /home/fxw/HDF5.jl:18

Is there any other fix than using a reinterpret?

Thanks,

Felix