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Merge branch 'main' into exercise_060_f80
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5 changed files with 12 additions and 11 deletions
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@ -10,7 +10,7 @@ Ziglings is intended for programmers of all experience levels. No
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specific language knowledge is expected. Anyone who can install
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the current Zig snapshot, setup a copy of Ziglings, and knows
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common language building blocks (if/then/else, loops, and
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functions) is ready or Ziglings.
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functions) is ready for Ziglings.
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Ziglings is intended to be completely self-contained. If you
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can't solve an exercise from the information you've gleaned so
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@ -41,7 +41,7 @@ Verify the installation and build number of `zig` like so:
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```bash
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$ zig version
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0.10.0-dev.3978+xxxxxxxxx
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0.11.0-dev.1302+xxxxxxxxx
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```
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Clone this repository with Git:
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@ -61,8 +61,8 @@ $ zig build
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The Zig language is under very active development. In order to be current,
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Ziglings tracks **development** builds of the Zig compiler rather than
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versioned **release** builds. The last stable release was `0.9.1`, but Ziglings
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needs a dev build with pre-release version "0.10.0" and a build number at least
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versioned **release** builds. The last stable release was `0.10.0`, but Ziglings
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needs a dev build with pre-release version "0.11.0" and a build number at least
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as high as that shown in the example version check above.
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It is likely that you'll download a build which is _greater_ than the minimum.
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@ -81,6 +81,8 @@ about input:
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### Version Changes
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Version-0.11.0-dev.1302+d813cef42
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* *2023-01-14* zig 0.11.0-dev.1302 - changes in `@addWithOverflow` in builtin functions
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* *2022-09-09* zig 0.10.0-dev.3978 - change in `NativeTargetInfo.detect` in build
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* *2022-09-06* zig 0.10.0-dev.3880 - Ex 074 correctly fails again: comptime array len
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* *2022-08-29* zig 0.10.0-dev.3685 - `@typeName()` output change, stage1 req. for async
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@ -160,6 +162,7 @@ Core Language
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* [x] Quoted identifiers @""
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* [x] Anonymous structs/tuples/lists
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* [ ] Async <--- IN PROGRESS!
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* [ ] Interfaces
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## Contributing
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@ -17,7 +17,7 @@ pub fn main() void {
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var num: u8 = 1;
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var more_nums = [_]u8{ 1, 1, 1, 1 };
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// Let's pass a reference to num to our function and print it:
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// Let's pass the num reference to our function and print it:
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makeFive(&num);
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std.debug.print("num: {}, ", .{num});
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@ -38,14 +38,12 @@ pub fn main() void {
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// Let's try it with a tiny 4-bit integer size to make it clear:
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const a: u4 = 0b1101;
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const b: u4 = 0b0101;
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var my_result: u4 = undefined;
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var overflowed: bool = undefined;
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overflowed = @addWithOverflow(u4, a, b, &my_result);
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const my_result = @addWithOverflow(a, b);
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// Check out our fancy formatting! b:0>4 means, "print
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// as a binary number, zero-pad right-aligned four digits."
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// The print() below will produce: "1101 + 0101 = 0010 (true)".
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print("{b:0>4} + {b:0>4} = {b:0>4} ({})", .{ a, b, my_result, overflowed });
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print("{b:0>4} + {b:0>4} = {b:0>4} ({s})", .{ a, b, my_result[0], if (my_result[1] == 1) "true" else "false" });
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// Let's make sense of this answer. The value of 'b' in decimal is 5.
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// Let's add 5 to 'a' but go one by one and see where it overflows:
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@ -4,8 +4,8 @@
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//
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// .{
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// false,
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// @as(u32, 15);
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// @as(i64, 67.12);
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// @as(u32, 15),
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// @as(f64, 67.12)
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// }
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//
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// We call these "tuples", which is a term used by many
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