WIP smth broke in decode

scripts/run_cmp.cpp

@@ -0,0 +1,48 @@
+#include <chrono>
+#include <cstdint>
+#include <iostream>
+#include <string>
+
+extern "C" {
+#include "../rpm-build/lib/set.h"
+}
+
+namespace {
+
+using Clock = std::chrono::steady_clock;
+using Nanoseconds = std::chrono::nanoseconds;
+
+void usage(const char* program)
+{
+    std::cerr << "Usage: " << program << " PROVIDER_SET REQUIRED_SET\n";
+}
+
+}  // namespace
+
+int main(int argc, char** argv)
+{
+    if (argc != 3) {
+        usage(argv[0]);
+        return 2;
+    }
+
+    const std::string provider_set = argv[1];
+    const std::string required_set = argv[2];
+
+    const auto start = Clock::now();
+    const int result = rpmsetcmp(provider_set.c_str(), required_set.c_str());
+    const auto finish = Clock::now();
+    const std::int64_t elapsed =
+        std::chrono::duration_cast<Nanoseconds>(finish - start).count();
+
+    std::cout << "provider_set\t" << provider_set << '\n';
+    std::cout << "required_set\t" << required_set << '\n';
+    std::cout << "cmp_result\t" << result << '\n';
+    std::cout << "rpmsetcmp_ns\t" << elapsed << '\n';
+
+    if (result == -3 || result == -4) {
+        std::cerr << "run_cmp: rpmsetcmp rejected an input set (result=" << result << ")\n";
+        return 1;
+    }
+    return 0;
+}