my ziglings
Update outdated comments
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exercises/036_enums2.zig
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exercises/036_enums2.zig
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// const Stuff = enum(u8){ foo = 16 };
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//
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// You can get the integer out with a builtin function,
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// @enumToInt(). We'll learn about builtins properly in a later
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// @intFromEnum(). We'll learn about builtins properly in a later
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// exercise.
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//
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// const my_stuff: u8 = @enumToInt(Stuff.foo);
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// const my_stuff: u8 = @intFromEnum(Stuff.foo);
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//
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// Note how that built-in function starts with "@" just like the
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// @import() function we've been using.
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exercises/064_builtins.zig
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exercises/064_builtins.zig
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// Ziglings exercise.
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//
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// We've also seen @intCast() in "016_for2.zig", "058_quiz7.zig";
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// and @enumToInt() in "036_enums2.zig".
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// and @intFromEnum() in "036_enums2.zig".
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//
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// Builtins are special because they are intrinsic to the Zig
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// language itself (as opposed to being provided in the standard
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exercises/065_builtins2.zig
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exercises/065_builtins2.zig
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//
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// Zig has builtins for mathematical operations such as...
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//
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// @sqrt @sin @cos
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// @exp @log @floor
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// @sqrt @sin @cos
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// @exp @log @floor
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//
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// ...and lots of type casting operations such as...
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//
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// @as @intToError @intToFloat
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// @intToPtr @ptrToInt @enumToInt
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// @as @errorFromInt @floatFromInt
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// @ptrFromInt @intFromPtr @intFromEnum
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//
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// Spending part of a rainy day skimming through the complete
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// list of builtins in the official Zig documentation wouldn't be