Thread: Reading an hex offset from command-line argument

  1. #1
    Registered User
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    Aug 2008

    Question Reading an hex offset from command-line argument

    Hi, I need some help to finish a simple program.

    I want to make it read a hex number from a command-line argument and use it as an integer, for the fseek command.

    It works like this: copypart.exe infile 0x8000 outfile

    The result is that everything from 0x8000 to EOF will be copied to outfile.

    I know how to access the command line arguments, however I don't know how can I convert the string "0x8000" to a integer so that it can be used by the fseek command. Could someone post a pratical code exemple of how to do that?

  2. #2
    and the hat of int overfl Salem's Avatar
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    Aug 2001
    The edge of the known universe
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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