Can template alias be used as a function input type?

I am wondering if it is possible to have a template alias as a function input type, and the 'further' type can be further determined based on the input?

template<typename T>  using Vec = std::vector<T>;  

I want to define a function:

void func(Vec& a){    for(auto &each :a){      //Do something    }  }  

Where the type of Vec can be derived based on the input a.

In such an example, the same func can be applied to all a as std::vector<ANY TYPE>.

I have such an issue because I have a vec initialized at the first beginning and run a series of functions.

a = Vec<int>;  fun1(a);  fun2(a);  ...  funN(a);  

I want to have the same operations but with different types.

a = Vec<double>;  fun1(a);  fun2(a);  ...  funN(a);  

If I follow the old templated function it will be

a = Vec<int>;  fun1<int>(a);  fun2<int>(a);  ...  funN<int>(a);  

and to change to double I have to do

a = Vec<double>;  fun1<double>(a);  fun2<double>(a);  ...  funN<double>(a);  

Basically, I have to change int to double for each function. I am looking forward some easier ways to do so.

https://stackoverflow.com/questions/66962149/can-template-alias-be-used-as-a-function-input-type April 06, 2021 at 10:56AM