in reply to Re^2: Design/Style question about writing to a file from different functions
in thread Design/Style question about writing to a file from different functions

I'm computing a checksum which I know when sub_func1 finished. But the line with the checksum has to be at the beginning of the file and NOT at the end.

Most checksums are (or can be) a fixed length string.

So, why not write a dummy checksum at the beginning. Write the rest of the file as you generate it. When you've finished writing, rewind seek the file to the beginning and overwrite the checksum. Close and done.

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