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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Private Function

conditionalAddWithOverflow

Doc Source

Private Function

std.crypto.ff.Uint.conditionalAddWithOverflow

fn conditionalAddWithOverflow(x: *Self, on: bool, y: Self) u1

Adds y to x if on is true, and returns true if the operation overflowed.

Params

x: *Self
on: bool
y: Self

File

crypto/ff.zig:273

        fn conditionalAddWithOverflow(x: *Self, on: bool, y: Self) u1 {
            var carry: u1 = 0;
            for (x.limbs(), y.limbsConst()) |*x_limb, y_limb| {
                const res = x_limb.* + y_limb + carry;
                x_limb.* = ct.select(on, @as(TLimb, @truncate(res)), x_limb.*);
                carry = @truncate(res >> t_bits);
            }
            return carry;
        }