Execution time of program

#include <bits/stdc++.h>
using namespace std;

#define debug(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)
#define time__(d) \
    for ( \
        auto blockTime = make_pair(chrono::high_resolution_clock::now(), true); \
        blockTime.second; \
        debug("%s: %lld ms\n", d, chrono::duration_cast<chrono::milliseconds>(chrono::high_resolution_clock::now() - blockTime.first).count()), blockTime.second = false \
)
void solve()
{
}
int32_t main()
{
        int tc=1;
        // cin>>tc;
        while(tc--){
                time__("solve"){
                    solve();
            }
        }

        return 0;
}