I am not sure I have quite understood your problem, but perhaps the data-binary-ieee754 package may be of use? -Brent I am trying to read and write to/from files or stdout/stdin that have an ascii header followed by unformatted float32 binary data. (The files are created using a C program.) The ascii header first needs to be parsed to understand the structure of the floating point data. I have solved the parsing problem, but getting the unformatted binary float data into a series of float (or double) immutable, unboxed vectors has defeated me so far. The binary package doesn't help as far as I can see, as the binary format it reads and writes has some control information at the beginning that doesn't exist in the format I am reading. This is easy in C, but seems to be hard in Haskell unless I am missing something. Any suggestions? -- David J. Raymond Prof. of Physics New Mexico Tech http://www.physics.nmt.edu/~raymond/index.html _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners