Merge branch 'main' of github.com:ratfactor/ziglings into main

exercises/005_arrays2.zig

@@ -33,7 +33,7 @@ pub fn main() void {
     // have a little preview of Zig 'for' loops instead:
     //
     //    for (<item array>) |item| { <do something with item> }
-    // 
+    //
     // Don't worry, we'll cover looping properly in upcoming
     // lessons.
     //

exercises/053_slices2.zig

@@ -31,5 +31,5 @@ pub fn main() void {
 }
 
 fn printPhrase(part1: []u8, part2: []u8, part3: []u8) void {
-    std.debug.print("'{s} {s} {s}.' ", .{part1, part2, part3});
+    std.debug.print("'{s} {s} {s}.' ", .{ part1, part2, part3 });
 }

exercises/059_integers.zig

@@ -23,6 +23,6 @@ pub fn main() void {
         0b1101000, // binary
         0x66,      // hex
     };
-        
+
     print("{s} is cool.\n", .{zig});
 }

exercises/060_floats.zig

@@ -59,7 +59,7 @@ pub fn main() void {
 //         |  exponent     significand
 //         |
 //          sign
-//    
+//
 // This example is the decimal number 3.140625, which happens to
 // be the closest representation of Pi we can make with an f16
 // due to the way IEEE-754 floating points store digits:
@@ -86,6 +86,6 @@ pub fn main() void {
 //
 // Fun fact: sometimes you'll see the significand labeled as a
 // "mantissa" but Donald E. Knuth says not to do that.
-//     
+//
 // C compatibility fact: There is also a Zig floating point type
 // specifically for working with C ABIs called c_longdouble.

exercises/061_coercions.zig

@@ -22,7 +22,7 @@
 //    const arr: [3]u8 = [3]u8{5, 6, 7};
 //    const s: []const u8 = &arr;  // to slice
 //    const p: [*]const u8 = &arr; // to many-item pointer
-//    
+//
 // 4. Single-item mutable pointers can coerce to single-item
 //    pointers pointing to an array of length 1. (Interesting!)
 //

exercises/064_builtins.zig

@@ -1,7 +1,7 @@
 //
 // The Zig compiler provides "builtin" functions. You've already
 // gotten used to seeing an @import() at the top of every
-// Ziglings exercise. 
+// Ziglings exercise.
 //
 // We've also seen @intCast() in "016_for2.zig", "058_quiz7.zig";
 // and @enumToInt() in "036_enums2.zig".
@@ -51,10 +51,10 @@ pub fn main() void {
     //    1111 + 1 = 0000      Yes! (Real answer is 10000)
     //    0000 + 1 = 0001      Yes!
     //    0001 + 1 = 0010      Yes!
-    // 
+    //
     // Also, check out our fancy formatting! b:0>4 means, "print
     // as a binary number, zero-pad right-aligned four digits."
-    print("{b:0>4} + {b:0>4} = {b:0>4} ({})", .{a, b, my_result, overflowed});
+    print("{b:0>4} + {b:0>4} = {b:0>4} ({})", .{ a, b, my_result, overflowed });
 
     print(". Furthermore, ", .{});
 
@@ -70,5 +70,5 @@ pub fn main() void {
     // this builtin to reverse the bits of a u8 integer.
     const input: u8 = 0b11110000;
     const tupni: u8 = @bitReverse(input);
-    print("{b:0>8} backwards is {b:0>8}.\n", .{input, tupni});
+    print("{b:0>8} backwards is {b:0>8}.\n", .{ input, tupni });
 }

exercises/065_builtins2.zig

@@ -1,7 +1,7 @@
 //
 // Zig has builtins for mathematical operations such as...
 //
-//      @sqrt        @sin          @cos 
+//      @sqrt        @sin          @cos
 //      @exp         @log          @floor
 //
 // ...and lots of type casting operations such as...
@@ -20,18 +20,18 @@
 // by exploring just THREE of Zig's MANY introspection abilities:
 //
 // 1. @This() type
-// 
+//
 // Returns the innermost struct, enum, or union that a function
 // call is inside.
 //
 // 2. @typeInfo(comptime T: type) @import("std").builtin.TypeInfo
-// 
+//
 // Returns information about any type in a TypeInfo union which
 // will contain different information depending on which type
 // you're examining.
-// 
+//
 // 3. @TypeOf(...) type
-// 
+//
 // Returns the type common to all input parameters (each of which
 // may be any expression). The type is resolved using the same
 // "peer type resolution" process the compiler itself uses when
@@ -46,14 +46,14 @@ const Narcissus = struct {
     me: *Narcissus = undefined,
     myself: *Narcissus = undefined,
     echo: void = undefined,
-    
+
     fn fetchTheMostBeautifulType() type {
         return @This();
     }
 };
 
 pub fn main() void {
-    var narcissus: Narcissus = Narcissus {};
+    var narcissus: Narcissus = Narcissus{};
 
     // Oops! We cannot leave the 'me' and 'myself' fields
     // undefined. Please set them here:
@@ -70,7 +70,7 @@ pub fn main() void {
     // fix this call:
     const T2 = narcissus.fetchTheMostBeautifulType();
 
-    print("A {} loves all {}es. ", .{T1, T2});
+    print("A {} loves all {}es. ", .{ T1, T2 });
 
     //   His final words as he was looking in
     //   those waters he habitually watched

exercises/066_comptime.zig

@@ -27,10 +27,10 @@
 //
 // Zig takes these concepts further by making these optimizations
 // an integral part of the language itself!
-// 
+//
 const print = @import("std").debug.print;
 
-pub fn main() void  {
+pub fn main() void {
     // ALL numeric literals in Zig are of type comptime_int or
     // comptime_float. They are of arbitrary size (as big or
     // little as you need).
@@ -46,7 +46,7 @@ pub fn main() void  {
     const const_int = 12345;
     const const_float = 987.654;
 
-    print("Immutable: {}, {d:.3}; ", .{const_int, const_float});
+    print("Immutable: {}, {d:.3}; ", .{ const_int, const_float });
 
     // But something changes when we assign the exact same values
     // to identifiers mutably with "var".
@@ -69,7 +69,7 @@ pub fn main() void  {
     var_int = 54321;
     var_float = 456.789;
 
-    print("Mutable: {}, {d:.3}; ", .{var_int, var_float});
+    print("Mutable: {}, {d:.3}; ", .{ var_int, var_float });
 
     // Bonus: Now that we're familiar with Zig's builtins, we can
     // also inspect the types to see what they are, no guessing

exercises/067_comptime2.zig

@@ -8,7 +8,7 @@
 //        --o--            comptime        *    |      ..    .
 //     *    |       *  .        .    .   .    --*--  .     *  .
 //  .     .    .    .   . . .      .        .   |   .    .  .
-//        
+//
 // When placed before a variable declaration, 'comptime'
 // guarantees that every usage of that variable will be performed
 // at compile time.
@@ -30,7 +30,7 @@
 //
 const print = @import("std").debug.print;
 
-pub fn main() void  {
+pub fn main() void {
     //
     // In this contrived example, we've decided to allocate some
     // arrays using a variable count! But something's missing...
@@ -49,7 +49,7 @@ pub fn main() void  {
     count += 1;
     var a4: [count]u8 = .{'D'} ** count;
 
-    print("{s} {s} {s} {s}\n", .{a1, a2, a3, a4});
+    print("{s} {s} {s} {s}\n", .{ a1, a2, a3, a4 });
 
     // Builtin BONUS!
     //

exercises/068_comptime3.zig

@@ -61,10 +61,10 @@ const Schooner = struct {
     }
 };
 
-pub fn main() void  {
-    var whale = Schooner {.name = "Whale"};
-    var shark = Schooner {.name = "Shark"};
-    var minnow = Schooner {.name = "Minnow"};
+pub fn main() void {
+    var whale = Schooner{ .name = "Whale" };
+    var shark = Schooner{ .name = "Shark" };
+    var minnow = Schooner{ .name = "Minnow" };
 
     // Hey, we can't just pass this runtime variable as an
     // argument to the scaleMe() method. What would let us do

exercises/069_comptime4.zig

@@ -13,14 +13,14 @@
 //
 const print = @import("std").debug.print;
 
-pub fn main() void  {
+pub fn main() void {
     // Here we declare arrays of three different types and sizes
     // at compile time from a function call. Neat!
     const s1 = makeSequence(u8, 3);  // creates a [3]u8
     const s2 = makeSequence(u32, 5); // creates a [5]u32
     const s3 = makeSequence(i64, 7); // creates a [7]i64
 
-    print("s1={any}, s2={any}, s3={any}\n", .{s1, s2, s3});
+    print("s1={any}, s2={any}, s3={any}\n", .{ s1, s2, s3 });
 }
 
 // This function is pretty wild because it executes at runtime
@@ -49,6 +49,6 @@ fn makeSequence(comptime T: type, ??? size: usize) [???]T {
     while (i < size) : (i += 1) {
         sequence[i] = @intCast(T, i) + 1;
     }
-    
+
     return sequence;
 }

exercises/070_comptime5.zig

@@ -140,6 +140,6 @@ fn isADuck(possible_duck: anytype) bool {
         // error, not a runtime panic or crash!
         possible_duck.quack();
     }
-        
+
     return is_duck;
 }

exercises/072_comptime7.zig

@@ -49,7 +49,7 @@ pub fn main() void {
             '*' => value *= digit,
             else => unreachable,
         }
-        // ...But it's quite a bit more exciting than it first appears. 
+        // ...But it's quite a bit more exciting than it first appears.
         // The 'inline while' no longer exists at runtime and neither
         // does anything else not touched directly by runtime
         // code. The 'instructions' string, for example, does not
@@ -61,6 +61,6 @@ pub fn main() void {
         // code at compile time. Guess we're compiler writers
         // now. See? The wizard hat was justified after all.
     }
-    
+
     print("{}\n", .{value});
 }

exercises/073_comptime8.zig

@@ -56,7 +56,7 @@ fn getLlama(i: usize) u32 {
 }
 
 // Fun fact: this assert() function is identical to
-// std.debug.assert() from the Zig Standard Library. 
+// std.debug.assert() from the Zig Standard Library.
 fn assert(ok: bool) void {
     if (!ok) unreachable;
 }

exercises/075_quiz8.zig

@@ -54,12 +54,12 @@ fn makePath(from: *Place, to: *Place, dist: u8) Path {
 
 // Using our new function, these path definitions take up considerably less
 // space in our program now!
-const a_paths = [_]Path{ makePath(&a, &b, 2) };
+const a_paths = [_]Path{makePath(&a, &b, 2)};
 const b_paths = [_]Path{ makePath(&b, &a, 2), makePath(&b, &d, 1) };
 const c_paths = [_]Path{ makePath(&c, &d, 3), makePath(&c, &e, 2) };
 const d_paths = [_]Path{ makePath(&d, &b, 1), makePath(&d, &c, 3), makePath(&d, &f, 7) };
 const e_paths = [_]Path{ makePath(&e, &c, 2), makePath(&e, &f, 1) };
-const f_paths = [_]Path{ makePath(&f, &d, 7) };
+const f_paths = [_]Path{makePath(&f, &d, 7)};
 //
 // But is it more readable? That could be argued either way.
 //
@@ -69,7 +69,7 @@ const f_paths = [_]Path{ makePath(&f, &d, 7) };
 //
 // For example, we could create our own "path language" and
 // create Paths from that. Something like this, perhaps:
-// 
+//
 //    a -> (b[2])
 //    b -> (a[2] d[1])
 //    c -> (d[3] e[2])

exercises/077_sentinels2.zig

@@ -22,7 +22,7 @@
 // Versatility! Zig strings are compatible with C strings (which
 // are null-terminated) AND can be coerced to a variety of other
 // Zig types:
-// 
+//
 //     const a: [5]u8 = "array".*;
 //     const b: *const [16]u8 = "pointer to array";
 //     const c: []const u8 = "slice";
@@ -50,7 +50,7 @@ pub fn main() void {
     //
     // Luckily, the 'length' field makes it possible to still
     // work with this value.
-    const foo = WeirdContainer {
+    const foo = WeirdContainer{
         .data = "Weird Data!",
         .length = 11,
     };

exercises/079_quoted_identifiers.zig

@@ -13,7 +13,7 @@
 // past the authorities: the @"" identifier quoting syntax.
 //
 //     @"foo"
-//     
+//
 // Please help us safely smuggle these fugitive identifiers into
 // our program:
 //

exercises/082_anonymous_structs3.zig

@@ -29,7 +29,7 @@
 // If a .{} thing is what the print function wants, do we need to
 // break our "tuple" apart and put it in another one? No! It's
 // redundant! This will print the same thing:
-//     
+//
 //     print("{} {}\n", foo);
 //
 // Aha! So now we know that print() takes a "tuple". Things are

exercises/084_async.zig

@@ -37,7 +37,7 @@
 //     fn bar() void {
 //         fooThatSuspends();
 //     }
-//     
+//
 // 6. The main() function cannot be async!
 //
 // Given facts 3 and 4, how do we fix this program (broken by facts

exercises/085_async2.zig

@@ -26,4 +26,3 @@ fn foo() void {
     suspend {}
     print("async!\n", .{});
 }
-

exercises/089_async6.zig

@@ -44,7 +44,7 @@ pub fn main() void {
     var com_title = com_frame;
     var org_title = org_frame;
 
-    print(".com: {s}, .org: {s}.\n", .{com_title, org_title});
+    print(".com: {s}, .org: {s}.\n", .{ com_title, org_title });
 }
 
 fn getPageTitle(url: []const u8) []const u8 {

exercises/090_async7.zig

@@ -10,7 +10,7 @@
 //     fn bar() void {
 //         fooThatMightSuspend(true); // Now bar() is async!
 //     }
-// 
+//
 // But if you KNOW the function won't suspend, you can make a
 // promise to the compiler with the 'nosuspend' keyword:
 //