Inserting table of chars as key and float as a result into a map from file

I want to insert values from text file into a map and encountered this error:
> error: array used as initializer
> 1817 | : first(std::forward<_Args1>(std::get<_Indexes1>(__tuple1))...),

fstream DistanceFile;
map<char[2], float> odleglosci;
void loadkeysdistance()
{
    char temp[2];
    string templine = "";
    float tempfloat = 0;
    DistanceFile.open("keys.txt");
    while (!DistanceFile.eof())
    {
        getline(disctionary, templine);
        temp[0] = templine[0];
        temp[1] = templine[2];
        tempfloat = stof(templine.substr(4, templine.length() - 4));
        odleglosci[temp] = tempfloat;
    }
}

this is the function i am using and text file "keys.txt" looks like that:

A A 0
A B 87.82
A C 51.29
A D 38.10
A E 38.40
A F 57.15
A G 76.20
A H 95.25

and so on till it gets to ZZ

std::map<char[2], float> odleglosci; this does not do what you think it does.

It would try to compare the pointers to the first elements of the arrays, not the content.

odleglosci[temp] = tempfloat; does not make sense due to above and triggers a compilation error on clang for somewhat unrelated reason, since you did not post a minimal reproducible example nor the full error, I am not sure what is causing yours exactly.

Anyway, use std::pair<char,char> instead.