Zig 0.17.0-dev (Split by item)

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parseTimeDigits

Certificate.parseTimeDigits

pub fn parseTimeDigits(text: *const [2]u8, min: u8, max: u8) !u8

File

lib/std/crypto/Certificate.zig:660

Code

pub fn parseTimeDigits(text: *const [2]u8, min: u8, max: u8) !u8 {
    const V = @Vector(2, u16);
    const bytes: V = text.*;
    const zero: V = @splat('0');
    const mm: V = .{ 10, 1 };
    const d = bytes -% zero;
    if (@reduce(.Or, d > @as(V, @splat(9)))) {
        @branchHint(.unlikely);
        return error.CertificateTimeInvalid;
    }
    const result = @reduce(.Add, d *% mm);
    if (result < min) return error.CertificateTimeInvalid;
    if (result > max) return error.CertificateTimeInvalid;
    return @intCast(result);
}