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27 lines
702 B
Zig
27 lines
702 B
Zig
//
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// It's important to note that variable pointers and constant pointers
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// are different types.
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//
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// Given:
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//
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// var foo: u8 = 5;
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// const bar: u8 = 5;
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//
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// Then:
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//
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// &foo is of type "*u8"
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// &bar is of type "*const u8"
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//
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// You can always make a constant pointer to a variable, but you cannot
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// make a variable pointer to a constant. This sounds like a logic puzzle,
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// but it just means that once data is declared immutable, you can't
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// coerce it to a mutable type. It's a safety thing (to prevent mistakes).
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//
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const std = @import("std");
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pub fn main() void {
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const a: u8 = 12;
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const b: *u8 = &a; // fix this!
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std.debug.print("a: {}, b: {}\n", .{a, b.*});
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}
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