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Home/ Questions/Q 6565809
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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T14:08:28+00:00 2026-05-25T14:08:28+00:00

I want to write data from an std::vector<char> to a socket, using the write

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I want to write data from an std::vector<char> to a socket, using the write function, which has this prototype:

ssize_t write(int, const void *, size_t);

The second argument to this function must be a pointer to the first element in the std::vector<char>. How can I get a pointer to this element?

I tried std::vector::front but this returns a reference, while I need a pointer.

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  1. Editorial Team
    Editorial Team
    2026-05-25T14:08:28+00:00Added an answer on May 25, 2026 at 2:08 pm
    &mv_vec[0]
    

    or

    &my_vec.front()
    

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