help me about make a compiler

This is a discussion on help me about make a compiler within the C Programming forums, part of the General Programming Boards category; hi friend i have a problem about make a compile .my problem is when i read the file and i ...

  1. #1
    Registered User
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    Unhappy help me about make a compiler

    hi friend i have a problem about make a compile .my problem is when i read the file and i want to read only the string that follow the word(unless),if , then that will occour many position in the file.please tell me how should i do?

  2. #2
    End Of Line Hammer's Avatar
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    Can't say I understood much of that. Why not post a sample of your input and output, along with the code you've already tried.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  3. #3
    Guest Sebastiani's Avatar
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    You just have to read the string only that follow the word if then it occurs once, while reading the file.
    Sounds simple enough to me.
    Code:
    #include <cmath>
    #include <complex>
    bool flip(bool value)
    {
           return std::pow
        (
            std::complex<float>(std::exp(1.0)), 
            std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0)*(1 << (value + 2)))
        ).real() < 0;
    }

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