106 & 107

1 files changed, 52 insertions, 0 deletions

diff --git a/exercises/107_files2.zig b/exercises/107_files2.zig
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+++ b/exercises/107_files2.zig
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+//
+// Prerequisite :
+//    - exercise/106_files.zig, or
+//    - create a file {project_root}/output/zigling.txt
+//      with content `It's zigling time!`(18 byte total)
+//
+// Now there no point in writing to a file if we don't read from it am I right?
+// let's wrote a program to read the content of the file that we just created.
+//
+// I am assuming you've created the appropriate files for this to work.
+//
+// Alright, bud, lean in close here's the game plan.
+//    - First, we open the {project_root}/output/ directory
+//    - Secondly, we open file `zigling.txt` in that directory
+//    - then, we initalize an array of character with all letter 'A', and print it
+//    - Afte that, we read the content of the file to the array
+//    - Finally, we print out the read content
+
+const std = @import("std");
+
+pub fn main() !void {
+    // Get the current working directory
+    const cwd = std.fs.cwd();
+
+    // try to open ./output assuming you did your 106_files exercise
+    var output_dir = try cwd.openDir("output", .{});
+    defer output_dir.close();
+
+    // try to open the file
+    const file = try output_dir.openFile("zigling.txt", .{});
+    defer file.close();
+
+    // initalize an array of u8 with all letter 'A'.
+    // we need to pick a size of the array, 64 seems like a good number.
+    // fix the initalization below
+    var content = ['A']*64;
+    // this should print out : `AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA`
+    std.debug.print("{s}\n", .{content});
+
+    // okay, seem like threat of violence is not the answer in this case
+    // can you go here to find a way to read the content ?
+    // https://ziglang.org/documentation/master/std/#std.fs.File
+    // hint: you might find two answer that are both vaild in this case
+    const byte_read = zig_read_the_file_or_i_will_fight_you(&content);
+
+    // Woah, too screamy, I know you're excited for zigling time but tone it down a bit
+    // Can you print only what we read from the file ?
+    std.debug.print("Successfully Read {} byte: {s}\n", .{
+        byte_read,
+        content, // change this line only
+    });
+}