const std = @import("std"); const builtin = @import("builtin"); const compat = @import("src/compat.zig"); const ipc = @import("src/ipc.zig"); const tests = @import("test/tests.zig"); const Build = compat.Build; const CompileStep = compat.build.CompileStep; const Step = compat.build.Step; const Child = std.process.Child; const assert = std.debug.assert; const join = std.fs.path.join; const print = std.debug.print; pub const Exercise = struct { /// main_file must have the format key_name.zig. /// The key will be used as a shorthand to build just one example. main_file: []const u8, /// This is the desired output of the program. /// A program passes if its output, excluding trailing whitespace, is equal /// to this string. output: []const u8, /// This is an optional hint to give if the program does not succeed. hint: ?[]const u8 = null, /// By default, we verify output against stderr. /// Set this to true to check stdout instead. check_stdout: bool = false, /// This exercise makes use of C functions. /// We need to keep track of this, so we compile with libc. link_libc: bool = false, /// This exercise is not supported by the current Zig compiler. skip: bool = false, /// Returns the name of the main file with .zig stripped. pub fn name(self: Exercise) []const u8 { return std.fs.path.stem(self.main_file); } /// Returns the key of the main file, the string before the '_' with /// "zero padding" removed. /// For example, "001_hello.zig" has the key "1". pub fn key(self: Exercise) []const u8 { // Main file must be key_description.zig. const end_index = std.mem.indexOfScalar(u8, self.main_file, '_') orelse unreachable; // Remove zero padding by advancing index past '0's. var start_index: usize = 0; while (self.main_file[start_index] == '0') start_index += 1; return self.main_file[start_index..end_index]; } /// Returns the exercise key as an integer. pub fn number(self: Exercise) usize { return std.fmt.parseInt(usize, self.key(), 10) catch unreachable; } /// Returns the CompileStep for this exercise. pub fn addExecutable(self: Exercise, b: *Build, work_path: []const u8) *CompileStep { const path = join(b.allocator, &.{ work_path, self.main_file }) catch @panic("OOM"); return b.addExecutable(.{ .name = self.name(), .root_source_file = .{ .path = path }, .link_libc = self.link_libc, }); } }; pub fn build(b: *Build) !void { if (!compat.is_compatible) compat.die(); if (!validate_exercises()) std.os.exit(1); use_color_escapes = false; if (std.io.getStdErr().supportsAnsiEscapeCodes()) { use_color_escapes = true; } else if (builtin.os.tag == .windows) { const w32 = struct { const WINAPI = std.os.windows.WINAPI; const DWORD = std.os.windows.DWORD; const ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004; const STD_ERROR_HANDLE = @bitCast(DWORD, @as(i32, -12)); extern "kernel32" fn GetStdHandle(id: DWORD) callconv(WINAPI) ?*anyopaque; extern "kernel32" fn GetConsoleMode(console: ?*anyopaque, out_mode: *DWORD) callconv(WINAPI) u32; extern "kernel32" fn SetConsoleMode(console: ?*anyopaque, mode: DWORD) callconv(WINAPI) u32; }; const handle = w32.GetStdHandle(w32.STD_ERROR_HANDLE); var mode: w32.DWORD = 0; if (w32.GetConsoleMode(handle, &mode) != 0) { mode |= w32.ENABLE_VIRTUAL_TERMINAL_PROCESSING; use_color_escapes = w32.SetConsoleMode(handle, mode) != 0; } } if (use_color_escapes) { red_text = "\x1b[31m"; green_text = "\x1b[32m"; bold_text = "\x1b[1m"; reset_text = "\x1b[0m"; } const logo = \\ \\ _ _ _ \\ ___(_) __ _| (_)_ __ __ _ ___ \\ |_ | |/ _' | | | '_ \ / _' / __| \\ / /| | (_| | | | | | | (_| \__ \ \\ /___|_|\__, |_|_|_| |_|\__, |___/ \\ |___/ |___/ \\ \\ ; const healed = b.option(bool, "healed", "Run exercises from patches/healed") orelse false; const override_healed_path = b.option([]const u8, "healed-path", "Override healed path"); const exno: ?usize = b.option(usize, "n", "Select exercise"); const healed_path = if (override_healed_path) |path| path else "patches/healed"; const work_path = if (healed) healed_path else "exercises"; const header_step = PrintStep.create(b, logo); if (exno) |n| { if (n == 0 or n > exercises.len - 1) { print("unknown exercise number: {}\n", .{n}); std.os.exit(1); } const ex = exercises[n - 1]; const build_step = ex.addExecutable(b, work_path); b.installArtifact(build_step); const run_step = b.addRunArtifact(build_step); const test_step = b.step("test", b.fmt("Run {s} without checking output", .{ex.main_file})); if (ex.skip) { const skip_step = SkipStep.create(b, ex); test_step.dependOn(&skip_step.step); } else { test_step.dependOn(&run_step.step); } const verify_step = ZiglingStep.create(b, ex, work_path); const zigling_step = b.step("zigling", b.fmt("Check the solution of {s}", .{ex.main_file})); zigling_step.dependOn(&verify_step.step); b.default_step = zigling_step; const start_step = b.step("start", b.fmt("Check all solutions starting at {s}", .{ex.main_file})); var prev_step = verify_step; for (exercises) |exn| { const nth = exn.number(); if (nth > n) { const verify_stepn = ZiglingStep.create(b, exn, work_path); verify_stepn.step.dependOn(&prev_step.step); prev_step = verify_stepn; } } start_step.dependOn(&prev_step.step); return; } else if (healed and false) { // Special case when healed by the eowyn script, where we can make the // code more efficient. // // TODO: this branch is disabled because it prevents the normal case to // be executed. const test_step = b.step("test", "Test the healed exercises"); b.default_step = test_step; for (exercises) |ex| { const build_step = ex.addExecutable(b, healed_path); b.installArtifact(build_step); const run_step = b.addRunArtifact(build_step); if (ex.skip) { const skip_step = SkipStep.create(b, ex); test_step.dependOn(&skip_step.step); } else { test_step.dependOn(&run_step.step); } } return; } const ziglings_step = b.step("ziglings", "Check all ziglings"); b.default_step = ziglings_step; // Don't use the "multi-object for loop" syntax, in order to avoid a syntax // error with old Zig compilers. var prev_step = &header_step.step; for (exercises) |ex| { const build_step = ex.addExecutable(b, "exercises"); b.installArtifact(build_step); const verify_stepn = ZiglingStep.create(b, ex, work_path); verify_stepn.step.dependOn(prev_step); prev_step = &verify_stepn.step; } ziglings_step.dependOn(prev_step); const test_step = b.step("test", "Run all the tests"); test_step.dependOn(tests.addCliTests(b, &exercises)); } var use_color_escapes = false; var red_text: []const u8 = ""; var green_text: []const u8 = ""; var bold_text: []const u8 = ""; var reset_text: []const u8 = ""; const ZiglingStep = struct { step: Step, exercise: Exercise, work_path: []const u8, result_messages: []const u8 = "", result_error_bundle: std.zig.ErrorBundle = std.zig.ErrorBundle.empty, pub fn create(b: *Build, exercise: Exercise, work_path: []const u8) *ZiglingStep { const self = b.allocator.create(ZiglingStep) catch @panic("OOM"); self.* = .{ .step = Step.init(.{ .id = .custom, .name = exercise.main_file, .owner = b, .makeFn = make, }), .exercise = exercise, .work_path = work_path, }; return self; } fn make(step: *Step, prog_node: *std.Progress.Node) !void { const self = @fieldParentPtr(ZiglingStep, "step", step); if (self.exercise.skip) { print("Skipping {s}\n\n", .{self.exercise.main_file}); return; } const exe_path = self.compile(prog_node) catch { if (self.exercise.hint) |hint| print("\n{s}HINT: {s}{s}", .{ bold_text, hint, reset_text }); self.help(); std.os.exit(1); }; self.run(exe_path, prog_node) catch { if (self.exercise.hint) |hint| print("\n{s}HINT: {s}{s}", .{ bold_text, hint, reset_text }); self.help(); std.os.exit(1); }; } fn run(self: *ZiglingStep, exe_path: []const u8, _: *std.Progress.Node) !void { resetLine(); print("Checking {s}...\n", .{self.exercise.main_file}); const b = self.step.owner; // Allow up to 1 MB of stdout capture. const max_output_bytes = 1 * 1024 * 1024; var result = Child.exec(.{ .allocator = b.allocator, .argv = &.{exe_path}, .cwd = b.build_root.path.?, .cwd_dir = b.build_root.handle, .max_output_bytes = max_output_bytes, }) catch |err| { print("{s}Unable to spawn {s}: {s}{s}\n", .{ red_text, exe_path, @errorName(err), reset_text, }); return err; }; const raw_output = if (self.exercise.check_stdout) result.stdout else result.stderr; // Make sure it exited cleanly. switch (result.term) { .Exited => |code| { if (code != 0) { print("{s}{s} exited with error code {d} (expected {d}){s}\n", .{ red_text, self.exercise.main_file, code, 0, reset_text, }); return error.BadExitCode; } }, else => { print("{s}{s} terminated unexpectedly{s}\n", .{ red_text, self.exercise.main_file, reset_text, }); return error.UnexpectedTermination; }, } // Validate the output. // NOTE: exercise.output can never contain a CR character. // See https://ziglang.org/documentation/master/#Source-Encoding. const output = try trimLines(b.allocator, raw_output); const exercise_output = self.exercise.output; if (!std.mem.eql(u8, output, self.exercise.output)) { const red = red_text; const reset = reset_text; print( \\ \\{s}========= expected this output: =========={s} \\{s} \\{s}========= but found: ====================={s} \\{s} \\{s}=========================================={s} \\ , .{ red, reset, exercise_output, red, reset, output, red, reset }); return error.InvalidOutput; } print("{s}PASSED:\n{s}{s}\n\n", .{ green_text, output, reset_text }); } fn compile(self: *ZiglingStep, prog_node: *std.Progress.Node) ![]const u8 { print("Compiling {s}...\n", .{self.exercise.main_file}); const b = self.step.owner; const exercise_path = self.exercise.main_file; const path = join(b.allocator, &.{ self.work_path, exercise_path }) catch @panic("OOM"); var zig_args = std.ArrayList([]const u8).init(b.allocator); defer zig_args.deinit(); zig_args.append(b.zig_exe) catch @panic("OOM"); zig_args.append("build-exe") catch @panic("OOM"); // Enable C support for exercises that use C functions. if (self.exercise.link_libc) { zig_args.append("-lc") catch @panic("OOM"); } zig_args.append(b.pathFromRoot(path)) catch @panic("OOM"); zig_args.append("--cache-dir") catch @panic("OOM"); zig_args.append(b.pathFromRoot(b.cache_root.path.?)) catch @panic("OOM"); zig_args.append("--listen=-") catch @panic("OOM"); const argv = zig_args.items; var code: u8 = undefined; const exe_path = self.eval(argv, &code, prog_node) catch |err| { self.printErrors(); switch (err) { error.FileNotFound => { print("{s}{s}: Unable to spawn the following command: file not found{s}\n", .{ red_text, self.exercise.main_file, reset_text, }); for (argv) |v| print("{s} ", .{v}); print("\n", .{}); }, error.ExitCodeFailure => { print("{s}{s}: The following command exited with error code {}:{s}\n", .{ red_text, self.exercise.main_file, code, reset_text, }); for (argv) |v| print("{s} ", .{v}); print("\n", .{}); }, error.ProcessTerminated => { print("{s}{s}: The following command terminated unexpectedly:{s}\n", .{ red_text, self.exercise.main_file, reset_text, }); for (argv) |v| print("{s} ", .{v}); print("\n", .{}); }, error.ZigIPCError => { print("{s}{s}: The following command failed to communicate the compilation result:{s}\n", .{ red_text, self.exercise.main_file, reset_text, }); for (argv) |v| print("{s} ", .{v}); print("\n", .{}); }, else => { print("{s}{s}: Unexpected error: {s}{s}\n", .{ red_text, self.exercise.main_file, @errorName(err), reset_text, }); for (argv) |v| print("{s} ", .{v}); print("\n", .{}); }, } return err; }; self.printErrors(); return exe_path; } // Code adapted from `std.Build.execAllowFail and `std.Build.Step.evalZigProcess`. pub fn eval( self: *ZiglingStep, argv: []const []const u8, out_code: *u8, prog_node: *std.Progress.Node, ) ![]const u8 { assert(argv.len != 0); const b = self.step.owner; const allocator = b.allocator; var child = Child.init(argv, allocator); child.env_map = b.env_map; child.stdin_behavior = .Pipe; child.stdout_behavior = .Pipe; child.stderr_behavior = .Pipe; try child.spawn(); var poller = std.io.poll(allocator, enum { stdout, stderr }, .{ .stdout = child.stdout.?, .stderr = child.stderr.?, }); defer poller.deinit(); try ipc.sendMessage(child.stdin.?, .update); try ipc.sendMessage(child.stdin.?, .exit); const Header = std.zig.Server.Message.Header; var result: ?[]const u8 = null; var node_name: std.ArrayListUnmanaged(u8) = .{}; defer node_name.deinit(allocator); var sub_prog_node = prog_node.start("", 0); defer sub_prog_node.end(); const stdout = poller.fifo(.stdout); poll: while (true) { while (stdout.readableLength() < @sizeOf(Header)) { if (!(try poller.poll())) break :poll; } const header = stdout.reader().readStruct(Header) catch unreachable; while (stdout.readableLength() < header.bytes_len) { if (!(try poller.poll())) break :poll; } const body = stdout.readableSliceOfLen(header.bytes_len); switch (header.tag) { .zig_version => { if (!std.mem.eql(u8, builtin.zig_version_string, body)) return error.ZigVersionMismatch; }, .error_bundle => { self.result_error_bundle = try ipc.parseErrorBundle(allocator, body); }, .progress => { node_name.clearRetainingCapacity(); try node_name.appendSlice(allocator, body); sub_prog_node.setName(node_name.items); }, .emit_bin_path => { const emit_bin = try ipc.parseEmitBinPath(allocator, body); result = emit_bin.path; }, else => {}, // ignore other messages } stdout.discard(body.len); } const stderr = poller.fifo(.stderr); if (stderr.readableLength() > 0) { self.result_messages = try stderr.toOwnedSlice(); } // Send EOF to stdin. child.stdin.?.close(); child.stdin = null; // Keep the errors compatible with std.Build.execAllowFail. const term = try child.wait(); switch (term) { .Exited => |code| { if (code != 0) { out_code.* = @truncate(u8, code); return error.ExitCodeFailure; } }, .Signal, .Stopped, .Unknown => |code| { out_code.* = @truncate(u8, code); return error.ProcessTerminated; }, } return result orelse return error.ZigIPCError; } fn help(self: *ZiglingStep) void { const path = self.exercise.main_file; const key = self.exercise.key(); print("\n{s}Edit exercises/{s} and run this again.{s}", .{ red_text, path, reset_text, }); const format = \\ \\{s}To continue from this zigling, use this command:{s} \\ {s}zig build -Dn={s}{s} \\ ; print(format, .{ red_text, reset_text, bold_text, key, reset_text }); } fn printErrors(self: *ZiglingStep) void { resetLine(); // Print the additional log and verbose messages. // TODO: use colors? if (self.result_messages.len > 0) print("{s}", .{self.result_messages}); // Print the compiler errors. // TODO: use the same ttyconf from the builder. const ttyconf: std.debug.TTY.Config = if (use_color_escapes) .escape_codes else .no_color; if (self.result_error_bundle.errorMessageCount() > 0) { self.result_error_bundle.renderToStdErr(.{ .ttyconf = ttyconf }); } } }; // Clear the entire line and move the cursor to column zero. // Used for clearing the compiler and build_runner progress messages. fn resetLine() void { if (use_color_escapes) print("{s}", .{"\x1b[2K\r"}); } /// Remove trailing whitespace for each line in buf, also ensuring that there /// are no trailing LF characters at the end. pub fn trimLines(allocator: std.mem.Allocator, buf: []const u8) ![]const u8 { var list = try std.ArrayList(u8).initCapacity(allocator, buf.len); var iter = std.mem.split(u8, buf, " \n"); while (iter.next()) |line| { // TODO: trimming CR characters is probably not necessary. const data = std.mem.trimRight(u8, line, " \r"); try list.appendSlice(data); try list.append('\n'); } const result = try list.toOwnedSlice(); // TODO: probably not necessary // Remove the trailing LF character, that is always present in the exercise // output. return std.mem.trimRight(u8, result, "\n"); } // Print a message to stderr. const PrintStep = struct { step: Step, message: []const u8, pub fn create(owner: *Build, message: []const u8) *PrintStep { const self = owner.allocator.create(PrintStep) catch @panic("OOM"); self.* = .{ .step = Step.init(.{ .id = .custom, .name = "print", .owner = owner, .makeFn = make, }), .message = message, }; return self; } fn make(step: *Step, prog_node: *std.Progress.Node) !void { _ = prog_node; const p = @fieldParentPtr(PrintStep, "step", step); print("{s}", .{p.message}); } }; // Skip an exercise. const SkipStep = struct { step: Step, exercise: Exercise, pub fn create(owner: *Build, exercise: Exercise) *SkipStep { const self = owner.allocator.create(SkipStep) catch @panic("OOM"); self.* = .{ .step = Step.init(.{ .id = .custom, .name = owner.fmt("skip {s}", .{exercise.main_file}), .owner = owner, .makeFn = make, }), .exercise = exercise, }; return self; } fn make(step: *Step, prog_node: *std.Progress.Node) !void { _ = prog_node; const p = @fieldParentPtr(SkipStep, "step", step); if (p.exercise.skip) { print("{s} skipped\n", .{p.exercise.main_file}); } } }; // Check that each exercise number, excluding the last, forms the sequence // `[1, exercise.len)`. // // Additionally check that the output field lines doesn't have trailing whitespace. fn validate_exercises() bool { // Don't use the "multi-object for loop" syntax, in order to avoid a syntax // error with old Zig compilers. var i: usize = 0; for (exercises[0..]) |ex| { const exno = ex.number(); const last = 999; i += 1; if (exno != i and exno != last) { print("exercise {s} has an incorrect number: expected {}, got {s}\n", .{ ex.main_file, i, ex.key(), }); return false; } var iter = std.mem.split(u8, ex.output, "\n"); while (iter.next()) |line| { const output = std.mem.trimRight(u8, line, " \r"); if (output.len != line.len) { print("exercise {s} output field lines have trailing whitespace\n", .{ ex.main_file, }); return false; } } if (!std.mem.endsWith(u8, ex.main_file, ".zig")) { print("exercise {s} is not a zig source file\n", .{ex.main_file}); return false; } } return true; } const exercises = [_]Exercise{ .{ .main_file = "001_hello.zig", .output = "Hello world!", .hint = \\DON'T PANIC! \\Read the error above. \\See how it has something to do with 'main'? \\Open up the source file as noted and read the comments. \\You can do this! , }, .{ .main_file = "002_std.zig", .output = "Standard Library.", }, .{ .main_file = "003_assignment.zig", .output = "55 314159 -11", .hint = "There are three mistakes in this one!", }, .{ .main_file = "004_arrays.zig", .output = "First: 2, Fourth: 7, Length: 8", .hint = "There are two things to complete here.", }, .{ .main_file = "005_arrays2.zig", .output = "LEET: 1337, Bits: 100110011001", .hint = "Fill in the two arrays.", }, .{ .main_file = "006_strings.zig", .output = "d=d ha ha ha Major Tom", .hint = "Each '???' needs something filled in.", }, .{ .main_file = "007_strings2.zig", .output = \\Ziggy played guitar \\Jamming good with Andrew Kelley \\And the Spiders from Mars , .hint = "Please fix the lyrics!", }, .{ .main_file = "008_quiz.zig", .output = "Program in Zig!", .hint = "See if you can fix the program!", }, .{ .main_file = "009_if.zig", .output = "Foo is 1!", }, .{ .main_file = "010_if2.zig", .output = "With the discount, the price is $17.", }, .{ .main_file = "011_while.zig", .output = "2 4 8 16 32 64 128 256 512 n=1024", .hint = "You probably want a 'less than' condition.", }, .{ .main_file = "012_while2.zig", .output = "2 4 8 16 32 64 128 256 512 n=1024", .hint = "It might help to look back at the previous exercise.", }, .{ .main_file = "013_while3.zig", .output = "1 2 4 7 8 11 13 14 16 17 19", }, .{ .main_file = "014_while4.zig", .output = "n=4", }, .{ .main_file = "015_for.zig", .output = "A Dramatic Story: :-) :-) :-( :-| :-) The End.", }, .{ .main_file = "016_for2.zig", .output = "The value of bits '1101': 13.", }, .{ .main_file = "017_quiz2.zig", .output = "1, 2, Fizz, 4, Buzz, Fizz, 7, 8, Fizz, Buzz, 11, Fizz, 13, 14, FizzBuzz, 16,", .hint = "This is a famous game!", }, .{ .main_file = "018_functions.zig", .output = "Answer to the Ultimate Question: 42", .hint = "Can you help write the function?", }, .{ .main_file = "019_functions2.zig", .output = "Powers of two: 2 4 8 16", }, .{ .main_file = "020_quiz3.zig", .output = "32 64 128 256", .hint = "Unexpected pop quiz! Help!", }, .{ .main_file = "021_errors.zig", .output = "2<4. 3<4. 4=4. 5>4. 6>4.", .hint = "What's the deal with fours?", }, .{ .main_file = "022_errors2.zig", .output = "I compiled!", .hint = "Get the error union type right to allow this to compile.", }, .{ .main_file = "023_errors3.zig", .output = "a=64, b=22", }, .{ .main_file = "024_errors4.zig", .output = "a=20, b=14, c=10", }, .{ .main_file = "025_errors5.zig", .output = "a=0, b=19, c=0", }, .{ .main_file = "026_hello2.zig", .output = "Hello world!", .hint = "Try using a try!", .check_stdout = true, }, .{ .main_file = "027_defer.zig", .output = "One Two", }, .{ .main_file = "028_defer2.zig", .output = "(Goat) (Cat) (Dog) (Dog) (Goat) (Unknown) done.", }, .{ .main_file = "029_errdefer.zig", .output = "Getting number...got 5. Getting number...failed!", }, .{ .main_file = "030_switch.zig", .output = "ZIG?", }, .{ .main_file = "031_switch2.zig", .output = "ZIG!", }, .{ .main_file = "032_unreachable.zig", .output = "1 2 3 9 8 7", }, .{ .main_file = "033_iferror.zig", .output = "2<4. 3<4. 4=4. 5>4. 6>4.", .hint = "Seriously, what's the deal with fours?", }, .{ .main_file = "034_quiz4.zig", .output = "my_num=42", .hint = "Can you make this work?", .check_stdout = true, }, .{ .main_file = "035_enums.zig", .output = "1 2 3 9 8 7", .hint = "This problem seems familiar...", }, .{ .main_file = "036_enums2.zig", .output = \\

\\ Red \\ Green \\ Blue \\

, .hint = "I'm feeling blue about this.", }, .{ .main_file = "037_structs.zig", .output = "Your wizard has 90 health and 25 gold.", }, .{ .main_file = "038_structs2.zig", .output = \\Character 1 - G:20 H:100 XP:10 \\Character 2 - G:10 H:100 XP:20 , }, .{ .main_file = "039_pointers.zig", .output = "num1: 5, num2: 5", .hint = "Pointers aren't so bad.", }, .{ .main_file = "040_pointers2.zig", .output = "a: 12, b: 12", }, .{ .main_file = "041_pointers3.zig", .output = "foo=6, bar=11", }, .{ .main_file = "042_pointers4.zig", .output = "num: 5, more_nums: 1 1 5 1", }, .{ .main_file = "043_pointers5.zig", .output = \\Wizard (G:10 H:100 XP:20) \\ Mentor: Wizard (G:10000 H:100 XP:2340) , }, .{ .main_file = "044_quiz5.zig", .output = "Elephant A. Elephant B. Elephant C.", .hint = "Oh no! We forgot Elephant B!", }, .{ .main_file = "045_optionals.zig", .output = "The Ultimate Answer: 42.", }, .{ .main_file = "046_optionals2.zig", .output = "Elephant A. Elephant B. Elephant C.", .hint = "Elephants again!", }, .{ .main_file = "047_methods.zig", .output = "5 aliens. 4 aliens. 1 aliens. 0 aliens. Earth is saved!", .hint = "Use the heat ray. And the method!", }, .{ .main_file = "048_methods2.zig", .output = "A B C", .hint = "This just needs one little fix.", }, .{ .main_file = "049_quiz6.zig", .output = "A B C Cv Bv Av", .hint = "Now you're writing Zig!", }, .{ .main_file = "050_no_value.zig", .output = "That is not dead which can eternal lie / And with strange aeons even death may die.", }, .{ .main_file = "051_values.zig", .output = "1:false!. 2:true!. 3:true!. XP before:0, after:200.", }, .{ .main_file = "052_slices.zig", .output = \\Hand1: A 4 K 8 \\Hand2: 5 2 Q J , }, .{ .main_file = "053_slices2.zig", .output = "'all your base are belong to us.' 'for great justice.'", }, .{ .main_file = "054_manypointers.zig", .output = "Memory is a resource.", }, .{ .main_file = "055_unions.zig", .output = "Insect report! Ant alive is: true. Bee visited 15 flowers.", }, .{ .main_file = "056_unions2.zig", .output = "Insect report! Ant alive is: true. Bee visited 16 flowers.", }, .{ .main_file = "057_unions3.zig", .output = "Insect report! Ant alive is: true. Bee visited 17 flowers.", }, .{ .main_file = "058_quiz7.zig", .output = "Archer's Point--2->Bridge--1->Dogwood Grove--3->Cottage--2->East Pond--1->Fox Pond", .hint = "This is the biggest program we've seen yet. But you can do it!", }, .{ .main_file = "059_integers.zig", .output = "Zig is cool.", }, .{ .main_file = "060_floats.zig", .output = "Shuttle liftoff weight: 1995796kg", }, .{ .main_file = "061_coercions.zig", .output = "Letter: A", }, .{ .main_file = "062_loop_expressions.zig", .output = "Current language: Zig", .hint = "Surely the current language is 'Zig'!", }, .{ .main_file = "063_labels.zig", .output = "Enjoy your Cheesy Chili!", }, .{ .main_file = "064_builtins.zig", .output = "1101 + 0101 = 0010 (true). Without overflow: 00010010. Furthermore, 11110000 backwards is 00001111.", }, .{ .main_file = "065_builtins2.zig", .output = "A Narcissus loves all Narcissuses. He has room in his heart for: me myself.", }, .{ .main_file = "066_comptime.zig", .output = "Immutable: 12345, 987.654; Mutable: 54321, 456.789; Types: comptime_int, comptime_float, u32, f32", .hint = "It may help to read this one out loud to your favorite stuffed animal until it sinks in completely.", }, .{ .main_file = "067_comptime2.zig", .output = "A BB CCC DDDD", }, .{ .main_file = "068_comptime3.zig", .output = \\Minnow (1:32, 4 x 2) \\Shark (1:16, 8 x 5) \\Whale (1:1, 143 x 95) , }, .{ .main_file = "069_comptime4.zig", .output = "s1={ 1, 2, 3 }, s2={ 1, 2, 3, 4, 5 }, s3={ 1, 2, 3, 4, 5, 6, 7 }", }, .{ .main_file = "070_comptime5.zig", .output = \\"Quack." ducky1: true, "Squeek!" ducky2: true, ducky3: false , .hint = "Have you kept the wizard hat on?", }, .{ .main_file = "071_comptime6.zig", .output = "Narcissus has room in his heart for: me myself.", }, .{ .main_file = "072_comptime7.zig", .output = "26", }, .{ .main_file = "073_comptime8.zig", .output = "My llama value is 25.", }, .{ .main_file = "074_comptime9.zig", .output = "My llama value is 2.", }, .{ .main_file = "075_quiz8.zig", .output = "Archer's Point--2->Bridge--1->Dogwood Grove--3->Cottage--2->East Pond--1->Fox Pond", .hint = "Roll up those sleeves. You get to WRITE some code for this one.", }, .{ .main_file = "076_sentinels.zig", .output = "Array:123056. Many-item pointer:123.", }, .{ .main_file = "077_sentinels2.zig", .output = "Weird Data!", }, .{ .main_file = "078_sentinels3.zig", .output = "Weird Data!", }, .{ .main_file = "079_quoted_identifiers.zig", .output = "Sweet freedom: 55, false.", .hint = "Help us, Zig Programmer, you're our only hope!", }, .{ .main_file = "080_anonymous_structs.zig", .output = "[Circle(i32): 25,70,15] [Circle(f32): 25.2,71.0,15.7]", }, .{ .main_file = "081_anonymous_structs2.zig", .output = "x:205 y:187 radius:12", }, .{ .main_file = "082_anonymous_structs3.zig", .output = \\"0"(bool):true "1"(bool):false "2"(i32):42 "3"(f32):3.14159202e+00 , .hint = "This one is a challenge! But you have everything you need.", }, .{ .main_file = "083_anonymous_lists.zig", .output = "I say hello!", }, // Skipped because of https://github.com/ratfactor/ziglings/issues/163 // direct link: https://github.com/ziglang/zig/issues/6025 .{ .main_file = "084_async.zig", .output = "foo() A", .hint = "Read the facts. Use the facts.", .skip = true, }, .{ .main_file = "085_async2.zig", .output = "Hello async!", .skip = true, }, .{ .main_file = "086_async3.zig", .output = "5 4 3 2 1", .skip = true, }, .{ .main_file = "087_async4.zig", .output = "1 2 3 4 5", .skip = true, }, .{ .main_file = "088_async5.zig", .output = "Example Title.", .skip = true, }, .{ .main_file = "089_async6.zig", .output = ".com: Example Title, .org: Example Title.", .skip = true, }, .{ .main_file = "090_async7.zig", .output = "beef? BEEF!", .skip = true, }, .{ .main_file = "091_async8.zig", .output = "ABCDEF", .skip = true, }, .{ .main_file = "092_interfaces.zig", .output = \\Daily Insect Report: \\Ant is alive. \\Bee visited 17 flowers. \\Grasshopper hopped 32 meters. , }, .{ .main_file = "093_hello_c.zig", .output = "Hello C from Zig! - C result is 17 chars written.", .link_libc = true, }, .{ .main_file = "094_c_math.zig", .output = "The normalized angle of 765.2 degrees is 45.2 degrees.", .link_libc = true, }, .{ .main_file = "095_for3.zig", .output = "1 2 4 7 8 11 13 14 16 17 19", }, .{ .main_file = "096_memory_allocation.zig", .output = "Running Average: 0.30 0.25 0.20 0.18 0.22", }, .{ .main_file = "097_bit_manipulation.zig", .output = "x = 0; y = 1", }, .{ .main_file = "098_bit_manipulation2.zig", .output = "Is this a pangram? true!", }, .{ .main_file = "099_formatting.zig", .output = \\ \\ X | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 \\---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ \\ 1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 \\ \\ 2 | 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 \\ \\ 3 | 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 \\ \\ 4 | 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 \\ \\ 5 | 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 \\ \\ 6 | 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 \\ \\ 7 | 7 14 21 28 35 42 49 56 63 70 77 84 91 98 105 \\ \\ 8 | 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 \\ \\ 9 | 9 18 27 36 45 54 63 72 81 90 99 108 117 126 135 \\ \\10 | 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 \\ \\11 | 11 22 33 44 55 66 77 88 99 110 121 132 143 154 165 \\ \\12 | 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 \\ \\13 | 13 26 39 52 65 78 91 104 117 130 143 156 169 182 195 \\ \\14 | 14 28 42 56 70 84 98 112 126 140 154 168 182 196 210 \\ \\15 | 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 , }, .{ .main_file = "100_for4.zig", .output = "Arrays match!", }, .{ .main_file = "101_for5.zig", .output = \\1. Wizard (Gold: 25, XP: 40) \\2. Bard (Gold: 11, XP: 17) \\3. Bard (Gold: 5, XP: 55) \\4. Warrior (Gold: 7392, XP: 21) , }, .{ .main_file = "999_the_end.zig", .output = \\ \\This is the end for now! \\We hope you had fun and were able to learn a lot, so visit us again when the next exercises are available. , }, };