cbiSizeofNifti.m
e5f5005bb2efmaster

cbiSizeofNifti.m
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			function varargout=cbiSizeofNifti(datatype);
			% [nbytes,possnbytes]=cbiSizeofNifti(datatype);
			%
			% Returns the number of bytes for a given Nifti data type
			% in string format (see fread for details).
			% Returns [] for unrecognized data types.
			%
			% WARNING: some data types are not unambiguously defined.
			% For these, the alternate number of bytes is output in
			% possnbytes, if 2 output arguments are given.
			% These data types are:
			% Type nbytes possnbytes
			% long 4 8
			% ulong 4 8

			switch (datatype)
			case {'uchar','schar','char','uint8','int8'}
			nbytes=1;
			possnbytes=nbytes;
			case {'int16','uint16','short','ushort'}
			nbytes=2;
			possnbytes=nbytes;
			case {'int32','uint32','single','float32','int','uint'}
			nbytes=4;
			possnbytes=nbytes;
			case {'int64','uint64','float64','double','complex64'}
			nbytes=8;
			possnbytes=nbytes;
			case {'long','ulong'}
			nbytes=4;
			possnbytes=8;
			case {'float128','complex128'}
			nbytes=16;
			possnbytes=nbytes;
			case 'complex256'
			nbytes=32;
			possnbytes=nbytes;
			otherwise
			nbytes=[];
			possnbytes=[];
			end
			varargout{1}=nbytes;
			if (nargout==2)
			varargout{2}=possnbytes;
			end