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Chris Boesch 2023-01-27 00:07:20 +01:00 committed by GitHub
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commit be1f9cd9b2
1 changed files with 3 additions and 6 deletions
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9
exercises/064_builtins.zig
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@ -26,14 +26,11 @@
const print = @import("std").debug.print;
pub fn main() void {
// The first builtin, alphabetically, is:
//
// @addWithOverflow(comptime T: type, a: T, b: T, result: *T) bool
// The second builtin, alphabetically, is:
// @addWithOverflow(a: anytype, b: anytype) struct { @TypeOf(a, b), u1 }
// * 'T' will be the type of the other parameters.
// * 'a' and 'b' are numbers of the type T.
// * 'result' is a pointer to space you're providing of type T.
// * The return value is true if the addition resulted in a
// value over or under the capacity of type T.
// * The return value is a tuple with the result and a possible overflow bit.
//
// Let's try it with a tiny 4-bit integer size to make it clear:
const a: u4 = 0b1101;