WEBVTT 00:00.840 --> 00:04.440 Hello and welcome to my course, Learn Advanced modern C++. 00:05.340 --> 00:09.630 In this video, I'm going to give you an overview of the course and tell you what you can expect. 00:10.650 --> 00:17.700 This is called advanced modern C++, but it seems to have rather a flexible meaning on Udemy. And covering 00:17.700 --> 00:19.110 intermediate as well as advanced. 00:19.440 --> 00:24.360 I have tried to design this course so that people with only a fairly basic understanding of C++ can follow 00:24.360 --> 00:24.540 it. 00:27.350 --> 00:32.330 I occasionally need to move myself around the screen to avoid covering up the text. 00:33.050 --> 00:34.760 I hope that is not too distracting! 00:36.020 --> 00:38.270 So what do we mean by Modern C++? 00:38.780 --> 00:45.950 Well, Modern C++ as opposed to Traditional C++, or I think "Older" is the more politically correct term! 00:46.880 --> 00:53.000 The way that a lot of people seem to think of C++ is that it is C with a few extra features. So you 00:53.000 --> 00:58.370 have lots of arrays and pointers from C, and then you stick inheritance on top of that, and maybe a few other 00:58.370 --> 00:58.880 features. 00:59.990 --> 01:04.130 The language was originally called C with classes, and a lot of people still use it that way. 01:05.760 --> 01:08.010 Modern C++ began in 2011. 01:08.430 --> 01:13.590 There was a very substantial revision to the language, which added lots of new features and also many 01:13.590 --> 01:19.050 improvements. And Bjarne Stroustrup, the designer of C++, said at the time, 01:19.440 --> 01:25.230 "It feels like a new language." So it is not just about learning new features, but also about changing 01:25.230 --> 01:28.140 the way that you think about C++ and the way that you write code. 01:29.040 --> 01:33.750 So that is quite a lot. And what you get for all that effort? 01:35.220 --> 01:37.980 Well, Modern C++ allows you to write safer code. 01:37.980 --> 01:44.010 You can avoid all the dangerous C features like explicit pointers, and memory which is allocated 01:44.010 --> 01:44.550 on the heap. 01:45.180 --> 01:50.660 You can get the compiler to generate loops for you, so they are going to be accurate, and not run off 01:50.700 --> 01:55.980 the end of the structure. And you do not need to manage memory yourself. 01:58.260 --> 02:00.510 Modern C++ is more expressive. 02:00.930 --> 02:06.330 It has better abstractions, so you do not need to write as much so-called "boilerplate" code. 02:06.630 --> 02:11.550 That means code which serves no useful purpose, but the language forces you to write it out every time. 02:13.220 --> 02:18.380 There are also local function, lambda expressions. And these make the containers and the algorithms 02:18.380 --> 02:20.960 in the Standard Template Library work together much better. 02:22.010 --> 02:27.530 So with containers, algorithms and lambda expressions, you can avoid writing a lot of explicit loops. 02:28.970 --> 02:30.710 Modern C++ is more efficient. 02:31.850 --> 02:36.950 The program will do more of its work at compile time, so that's just once. As opposed to every time you 02:36.950 --> 02:37.670 run the program. 02:38.090 --> 02:43.430 So that means the program takes less time to run. And you can avoid making copies of temporary data, 02:43.670 --> 02:47.090 which was something that C++ got a lot of criticism for. 02:49.280 --> 02:54.980 If you're trying to convince your manager to switch to modern C++. The benefits are there is less low 02:54.980 --> 02:57.770 level code for programmers to write and to test. 02:58.460 --> 03:00.770 So that means the development time is reduced. 03:00.770 --> 03:02.510 You can get your product to market quicker. 03:03.500 --> 03:06.860 The code is clearer and more expressive, so it is easier to maintain. 03:08.160 --> 03:13.380 The code is more likely to be correct and efficient, so that means fewer defect reports and performance 03:13.380 --> 03:13.890 issues. 03:14.430 --> 03:17.530 And you can avoid many of the situations which cause undefined behaviour. 03:17.940 --> 03:21.870 So that means less crashes and not so much time debugging them. 03:24.590 --> 03:32.270 This course is going to cover C++ 11 and 14. C++ 17 was four years ago, but it is still not fully 03:32.270 --> 03:38.000 supported by all compilers, so we have to stick to the versions, but there is plenty to keep us busy! 03:39.140 --> 03:43.640 We start off by providing the foundation material for this course, so we have things like arrays, but 03:43.640 --> 03:47.030 also strings and vectors, iterators and templates. 03:47.720 --> 03:51.050 And also, we look at the way that you need to think about C++. 03:52.540 --> 03:57.600 So you may think this is all very easy, very basic stuff, and you can just skip through it. But please don't! 03:58.000 --> 04:01.030 There is a lot of material here that you probably have not seen before. 04:01.450 --> 04:06.430 And also there is a lot of important ideas about the way to think about C++. 04:09.180 --> 04:13.830 So once we have covered the necessary material for the course, we can get into the heart of the matter. 04:15.000 --> 04:20.040 The main features of the course will include operator overloading, lambda expressions, inheritance, 04:20.670 --> 04:28.200 exceptions and RAII, which is a very important concept in C++ programming. Move semantics to avoid unnecessary 04:28.200 --> 04:35.580 copying. And compile-time programming, which is one of the main directions in C++ these days. And also 04:35.580 --> 04:36.500 the standard library. 04:36.540 --> 04:41.400 So things like files and streams, the algorithms and containers from the Standard Template Library, 04:41.970 --> 04:44.760 smart pointers, and a lot more than this. 04:48.260 --> 04:55.720 The course consists of videos, each video will cover a small part of one of those topics. In the video, 04:55.730 --> 05:00.260 there will usually be a demonstration, with source code, of how to use the topic, how it works. 05:01.310 --> 05:03.560 You can download the source code for the video. 05:05.870 --> 05:11.000 There are also exercises for the videos, which are very simple. They basically just ask you to repeat 05:11.000 --> 05:14.720 whati s in the video. Which is important reinforcement. So do not skip that! 05:15.740 --> 05:20.990 And of course, solutions for those. At the end of each of the sections, there is going to be a workshop. 05:21.350 --> 05:24.770 So this can cover material from all the section and other parts of the course. 05:25.580 --> 05:30.710 The exercises are going to be more challenging. And you will get solutions for those as well. 05:36.210 --> 05:39.660 I regard providing support as a very important part of the course. 05:40.410 --> 05:42.450 I take great pride in providing good support. 05:42.840 --> 05:47.760 So if you have any questions or if you encounter any difficulties, please get in touch. 05:48.030 --> 05:52.110 Use the Q&A for the video or send me a message. 05:53.250 --> 05:59.550 And if I'm awake and within reach of a computer, I will normally reply within an hour! So I will be 05:59.550 --> 06:01.350 supporting the course very actively. 06:02.280 --> 06:04.260 So that's it for this video, really. 06:04.650 --> 06:07.230 I hope you enjoy the course and find it useful. 06:07.590 --> 06:13.830 And as I say at the end of each video, keep coding! Because it is not enough just to sit there and watch 06:13.830 --> 06:14.370 the videos. 06:14.370 --> 06:17.750 You have to type in the code yourself, then experiment with it. 06:17.760 --> 06:19.890 Change things, add new features. 06:20.280 --> 06:21.210 See what happens. 06:21.510 --> 06:24.000 See how you can break it. And so on. 06:24.690 --> 06:26.030 So I'll see you next time. 06:26.040 --> 06:28.320 But until then, keep coding!