VariadicTemplate.cpp

#include <string>
#include <string.h>
#include <stdio.h>

std::string arg;

template<typename T>
T add(T arg_){
    return arg_;
}

template<typename T, typename... Args>
T add(T arg_, Args... args) {
    char* str_cast = strdup(arg_);
    strcat(str_cast, " ");
    return strcat(str_cast, add(args...));
}

template <typename... Args>
void set_args(Args... args) noexcept {
    arg += add(args...);
}

int main() {
    set_args("-O3", "-fsanitize=leak");
    return 0;
}