'How to fix double error while evaluating c++

I have a function which transforms double to int

uint32_t convert(double val) {
    return static_cast<uint32_t>(trunc(val * 1E4()); 
}

But I have problems with 1.00009999999999999 because it transforms in 10001. I know that problem with double error, but how fix it? I have tried epsilon, but it didn't help

c++double


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