{}
// Online C++ compiler to run C++ program online
#include <iostream>
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
int main() {
size_t size = 847'784'322;
size_t curr = 847'863'140; // this is larger - outside of buffer
size_t diff_old = size - curr;
int64_t diff_new = size - curr;
std::cout << "Diff old: " << diff_old << "\n";
std::cout << "Diff new: " << diff_new << "\n";
int buf_size = 138234;
int buf_size_old = FFMIN(buf_size, size - curr);
int buf_size_new = FFMIN(buf_size, static_cast<int64_t>(size - curr));
std::cout << "Old: " << buf_size_old << "\n";
std::cout << "New: " << buf_size_new << "\n";
return 0;
}