WEBVTT 00:00.210 --> 00:07.810 Like I said before structure types work just like built in types and you can even use them with pointers. 00:07.830 --> 00:18.350 So something like this type pointer in column A pointer say. 00:19.170 --> 00:20.550 OK. 00:20.830 --> 00:23.390 And we can even get it from the 00:27.740 --> 00:29.140 pointer. 00:30.820 --> 00:32.100 New book or 00:35.930 --> 00:37.440 we it down here. 00:40.630 --> 00:47.250 And so it works exactly like any other regular Pilton type. 00:47.250 --> 00:54.930 There is one difference though and the question becomes how would you access member variables from the 00:54.930 --> 00:57.630 pointer k. 00:57.700 --> 01:03.900 So let's say we wanted to access the year from the book pointer. 01:03.900 --> 01:17.480 Well here's how you do it one way you do it is remember we use the dereference operator the star K and 01:17.540 --> 01:26.560 I'm putting these into parentheses because we have to dereference just the book pointer and then you'd 01:26.560 --> 01:34.800 press dot K and then you could access your K. 01:35.030 --> 01:35.980 You can do this. 01:35.990 --> 01:43.220 But there's an easier way because this is a bit cumbersome to do every time you have to kind of put 01:43.220 --> 01:47.980 it in parentheses and have that dereference and use that dot operator. 01:47.980 --> 01:49.350 It's all kind of messy. 01:49.370 --> 01:50.040 OK. 01:50.330 --> 01:54.230 So instead of what you can do is do this. 01:54.280 --> 02:02.740 So book winter in have this arrow and then access the year 02:05.430 --> 02:06.300 k. 02:06.490 --> 02:10.480 So these two are actually equivalent. 02:10.510 --> 02:12.460 These are the same thing. 02:12.610 --> 02:13.160 OK. 02:15.230 --> 02:19.940 And so what this is doing is really two things. 02:19.940 --> 02:28.640 It's referencing the pointer and also accessing the member variable of the structure all in the same 02:30.150 --> 02:34.520 or all in one kind of little piece of syntax. 02:34.650 --> 02:44.450 This this erro so you can use either version but I tend to prefer the arrow because oftentimes I don't 02:44.450 --> 02:46.070 want to write this right. 02:46.070 --> 02:48.300 This is kind of ugly. 02:49.220 --> 02:55.280 So talk about some different ways you can make it easier to find types in the next lecture.