Basic Zig Project

Now that you have got zig up and running, it's time to start a basic project in zig.

Create a new directory where you want to put the new project.
```
mkdir my-zig-project && cd my-zig-project
```
Initialize a zig project in the current directory
```
zig init-exe
```
If you see something like
```
info: Created build.zig
info: Created src\main.zig
info: Next, try `zig build --help` or `zig build run`
```
then you have successfuly created a zig project. If not, then go through the installation section to check if you made any mistakes.

Open the folder in a text editor.
You should see a folder called src. This is where source code of your project lives.

const std = @import("std");

pub fn main() !void {
    // 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());
}

For now, remove everything from test "simple test" { Now, lets go step by step throught the file.

main.zig

The first line in main.zig is
```
#![allow(unused)]
fn main() {
const std = @import("std");
}
```
const is used to declare constant named std.
@import("std") tells the zig compiler that we want to import the The Zig Standard Library is needed for things like printing to stdout, opening files, networking etc.
```
 pub fn main() void {} 
```
is used to declare a function.
The fn keyword declares a function and main is the name of the function.
The return type comes after main(). Here, the return type is void. void basicaly means we don't have anything to return.
main is a special function that is excuted when the executable is run. It is the entry point of the executable.

Zook

Basic Zig Project

main.zig