Function length [src]

Encode a length.

Prototype

pub fn length(self: *Encoder, len: usize) !void

Parameters

self: *Encoderlen: usize

Source

  pub fn length(self: *Encoder, len: usize) !void {
    const writer_ = self.writer();
    if (len < 128) {
        try writer_.writeInt(u8, @intCast(len), .big);
        return;
    }
    inline for ([_]type{ u8, u16, u32 }) |T| {
        if (len < std.math.maxInt(T)) {
            try writer_.writeInt(T, @intCast(len), .big);
            try writer_.writeInt(u8, @sizeOf(T) | 0x80, .big);
            return;
        }
    }
    return error.InvalidLength;
}  