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c++templatesc++11vectorbitset

c++ how to make vector store bitsets?

So basically I want to store std::bitset<128> within std::vector<>.

I have tried this:

std::vector<std::bitset<128>> myVector;

But compiler complains about invalid template parameters. How can I fix this and can I add this type into a typedef for later use?

EDIT: Indeed my compiler seems to use C++03 as its default standard and I had to use vector<bitset<128> > for this to work with current settings.

Solution

  • Yes it works, even with a typedef.

    But note that you need c++11 (-std=c++11) to use two right adjacent angle brackets in your declaration.

    #include <vector>
#include <bitset>

int main() {
    typedef std::vector<std::bitset<128>> Bitset_vec;
    Bitset_vec v;
    return 0;
}

    If you don't have support for c++11, add a space between the brackets :

    typedef std::vector<std::bitset<128> > Bitset_vec;

    Live example here (note the -std=c++11 option)