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c++auto

How to use auto keyword in argument list in C++ 11?

How to replace auto keyword from the function parameter when there will be multiple type arguments called with this function? because I want to use -std=c++11 and I am getting this error in omnet++:

**error: use of auto in parameter declaration only available with -std=c++14 or -std=gnu++14**  

void get_index(auto s_arra[], auto elem) {
    ...
}

void main() {
    get_index(float array1, float var1);
    get_index(int array2, int var2);
}
Solution 
  • void get_index(auto s_arra[], auto elem) {
    //...
}

    Would be valid only in C++20 (gcc error message is misleading)

    previously, you use template the verbose way

    template <typename T1, typename T2>
void get_index(T1 s_arra[], T2 elem) {
    //...
}

    and probably they use same type, so

    template <typename T>
void get_index(T s_arra[], T elem) {
    //...
}