compat.nanodbc

// compat.nanodbc — connect to a DSN that does not exist and assert nanodbc
// reports the driver manager's own diagnostics as a nanodbc::database_error.
//
// Deliberately DATABASE-FREE. A CI runner has no database server and no ODBC
// driver, so a successful connect asserts nothing that can hold everywhere.
// What IS guaranteed is the driver manager (unixODBC), which is the layer
// nanodbc wraps: the failed connect still walks handle allocation, the DSN
// lookup and the diagnostic formatting, and every one of those symbols comes
// from the compiled nanodbc.cpp — a half-linked package fails here.
#ifdef HAVE_NANODBC

#include <nanodbc/nanodbc.h>
import std;

int main() {
    bool ok = true;
    auto check = [&](bool cond, std::string_view what) {
        if (!cond) {
            std::println("FAIL: {}", what);
            ok = false;
        }
    };
// …