//! By convention, main.zig is where your main function lives in the case that
//! you are building an executable. If you are making a library, the convention
//! is to delete this file and start with root.zig instead.

const std = @import("std");

/// This imports the separate module containing `root.zig`. Take a look in `build.zig` for details.
const zisp = @import("zisp_lib");

pub fn main() !void {
    const T = extern union {
        bits: u64,
        double: f64,
    };
    var f1: *volatile f64 = undefined;
    var f2: *volatile f64 = undefined;
    var x: *volatile T = undefined;

    var _gpa: std.heap.GeneralPurposeAllocator(.{}) = .init;
    const gpa = _gpa.allocator();

    f1 = try gpa.create(f64);
    f2 = try gpa.create(f64);
    x = try gpa.create(T);

    f1.* = 0.0;
    f2.* = 0.0;
    x.*.double = f1.* / f2.*;
    std.debug.print(" 0/0: {x}\n", .{x.*.bits});

    f1.* = -0.0;
    f2.* = 0.0;
    x.*.double = f1.* / f2.*;
    std.debug.print("-0/0: {x}\n", .{x.*.bits});

    // // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
    // std.debug.print("All your {s} are belong to us.\n", .{"codebase"});

    // // stdout is for the actual output of your application, for example if you
    // // are implementing gzip, then only the compressed bytes should be sent to
    // // stdout, not any debugging messages.
    // const stdout_file = std.io.getStdOut().writer();
    // var bw = std.io.bufferedWriter(stdout_file);
    // const stdout = bw.writer();

    // try stdout.print("Run `zig build test` to run the tests.\n", .{});

    // try bw.flush(); // Don't forget to flush!
}

test "simple test" {
    var list = std.ArrayList(i32).init(std.testing.allocator);
    defer list.deinit(); // Try commenting this out and see if zig detects the memory leak!
    try list.append(42);
    try std.testing.expectEqual(@as(i32, 42), list.pop());
}

test "use other module" {
    //try std.testing.expectEqual(@as(i32, 150), lib.add(100, 50));
}

test "fuzz example" {
    const Context = struct {
        fn testOne(context: @This(), input: []const u8) anyerror!void {
            _ = context;
            // Try passing `--fuzz` to `zig build test` and see if it manages to fail this test case!
            try std.testing.expect(!std.mem.eql(u8, "canyoufindme", input));
        }
    };
    try std.testing.fuzz(Context{}, Context.testOne, .{});
}