From c7cd286be9d4ede3129a309e2668686be4646f07 Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Thu, 19 Sep 2024 14:01:34 +0200
Subject: Added saving of struct to file in Zig and reading it back

---
 zig-struct-bin/Makefile |   2 ++
 zig-struct-bin/main.zig |  35 +++++++++++++++++++++++++++++++++++
 zig-struct-bin/out.bin  | Bin 0 -> 8 bytes
 3 files changed, 37 insertions(+)
 create mode 100644 zig-struct-bin/Makefile
 create mode 100644 zig-struct-bin/main.zig
 create mode 100644 zig-struct-bin/out.bin

(limited to 'zig-struct-bin')

diff --git a/zig-struct-bin/Makefile b/zig-struct-bin/Makefile
new file mode 100644
index 0000000..98beea6
--- /dev/null
+++ b/zig-struct-bin/Makefile
@@ -0,0 +1,2 @@
+default:
+	zig test main.zig
diff --git a/zig-struct-bin/main.zig b/zig-struct-bin/main.zig
new file mode 100644
index 0000000..4193242
--- /dev/null
+++ b/zig-struct-bin/main.zig
@@ -0,0 +1,35 @@
+const std = @import("std");
+
+const Sample = packed struct {
+    type: u16,
+    machine: u16,
+    version: u32,
+};
+
+test "write" {
+    const s = Sample{
+        .type = 54,
+        .machine = 72,
+        .version = 132,
+    };
+
+    std.debug.print("{}\n", .{s});
+
+    var file = try std.fs.cwd().createFile("out.bin", .{});
+    defer file.close();
+
+    try file.writeAll(std.mem.asBytes(&s));
+}
+
+test "read" {
+    var file = try std.fs.cwd().openFile("./out.bin", .{});
+    defer file.close();
+
+    var buffer: [8]u8 = undefined;
+    _ = try file.read(buffer[0..]);
+
+    const s: *Sample = @ptrCast(@alignCast(&buffer));
+    std.debug.print("{}\n", .{s});
+}
+
+pub fn main() void {}
diff --git a/zig-struct-bin/out.bin b/zig-struct-bin/out.bin
new file mode 100644
index 0000000..44ae9d8
Binary files /dev/null and b/zig-struct-bin/out.bin differ
-- 
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