gdbbug.cpp

#include <cstddef>
#include <iostream>

template <typename T>
struct dyn_array {
    T* data;

    dyn_array(std::size_t n): data(new T[n]) {}
    ~dyn_array() {
        delete[] data;
    }
};

template <typename T>
void noop(T x) {}

int main() {
    dyn_array<int> a(100);
    noop(a);
}