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- --- exercises/107_files2.zig 2024-06-17 10:11:53.651439869 +0200
- +++ answers/107_files2.zig 2024-06-17 10:21:50.700671057 +0200
- @@ -4,17 +4,17 @@
- // - create a file {project_root}/output/zigling.txt
- // with content `It's zigling time!`(18 byte total)
- //
- -// Now there's no point in writing to a file if we don't read from it, am I right?
- -// Let's write a program to read the content of the file that we just created.
- +// Now there no point in writing to a file if we don't read from it am I right?
- +// let's write a program to read the content of the file that we just created.
- //
- // I am assuming that you've created the appropriate files for this to work.
- //
- -// Alright, bud, lean in close. Here's the game plan.
- +// 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 characters with all letter 'A', and print it
- -// - After that, we read the content of the file into the array
- -// - Finally, we print out the content we just read
- +// - then, we initalize an array of characters with all letter 'A', and print it
- +// - After that, we read the content of the file to the array
- +// - Finally, we print out the read content
-
- const std = @import("std");
-
- @@ -30,23 +30,23 @@
- const file = try output_dir.openFile("zigling.txt", .{});
- defer file.close();
-
- - // initalize an array of u8 with all letter 'A'
- - // we need to pick the size of the array, 64 seems like a good number
- + // initalize an array of u8 with all letter 'A'.
- + // we need to pick the size of the array, 64 seems like a good number.
- // fix the initalization below
- - var content = ['A']*64;
- + var content = [_]u8{'A'} ** 64;
- // this should print out : `AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA`
- std.debug.print("{s}\n", .{content});
-
- // okay, seems like a threat of violence is not the answer in this case
- - // can you go here to find a way to read the content?
- + // 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 answers that are both vaild in this case
- - const bytes_read = zig_read_the_file_or_i_will_fight_you(&content);
- + const bytes_read = try file.read(&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?
- + // 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 {d} bytes: {s}\n", .{
- bytes_read,
- - content, // change this line only
- + content[0..bytes_read], // change this line only
- });
- }
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