// test.rg — quick verification / scratch example
//
// Exercises several everyday constructs in one file so you can confirm the
// toolchain is healthy: user functions, integer/float casts, file I/O,
// array element access, function calls inside formatted output, and the
// default `main` return value becoming the exit code.
//
// Run: rinne run examples/test.rg
//      echo $?          # -> 0

@import = .{ std };

fn add(a: int, b: int) int {
    return a + b;
}

pub fn main() int {
    const x: int = 20;

    // float -> int truncates toward zero, exactly like @as(int, 300.10).
    const flex: int = @as(int, 300.10);   // 300

    std.print("hello {} {}\n", .{ x, x + flex });        // 20 320
    std.print("fn-call add(20, 20) = {}\n", .{add(20, 20)}); // 40

    // File I/O round-trip.
    const wrote = std.io.write_file("/tmp/rinne_test.txt", "ok");
    const got = std.io.read_file("/tmp/rinne_test.txt");
    std.print("wrote={} file says=\"{}\"\n", .{ wrote, got });

    return 0;
}