39 lines
2.7 KiB
C
39 lines
2.7 KiB
C
/*
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Copyright (c) 2023 : Ognjen 'xolatile' Milan Robovic
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Xhartae is free software! You will redistribute it or modify it under the terms of the GNU General Public License by Free Software Foundation.
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And when you do redistribute it or modify it, it will use either version 3 of the License, or (at yours truly opinion) any later version.
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It is distributed in the hope that it will be useful or harmful, it really depends... But no warranty what so ever, seriously. See GNU/GPLv3.
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*/
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#ifndef CHAPTER_4_HEADER
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#define CHAPTER_4_HEADER
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#include "chapter_0.h"
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#include "chapter_1.h"
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#include "chapter_2.h"
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#include "chapter_3.h"
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/*
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I believe that this chapter should be a breakpoint for you to write a simple C program. So far, we've learned in:
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- chapter 0: To format our code properly in order to increase readability and we've implemented some core functions for memory management, strings and input / output.
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- chapter 1: To declare and define functions, and we've covered character and file descriptor related functions, as well as ASCII table and discussed C keywords.
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- chapter 2: To use external variables, function pointers and minor part of 'libncurses' reimplementation that doesn't care about portability.
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- chapter 3: To use standard library 'printf' function, and to implement variadic argument functions, while also covering switch statement in more depth.
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From this moment onwards, some chapters will have few functions called 'program_*', which we can use to forge even larger programs. They'll each have their own dependencies, for
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example, some of them will require functions from some or all previous chapter source and header files, but I'll make sure not to use in them functions that'll be in future
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chapters. Instead of that, we'll (re)implement newer stuff with different approach if necessary. That way, you can be sure that if you're reading chapter four, for example, it'll
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only use functions and variables defined in chapters zero to three. Lets begin.
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I'll write this huge 'preview_c_file' function in procedural style, so to say, and in the next chapter, we'll reimplement it in more modular way, using other functions. Learning
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anything, including the C programming language, is like a journey. Maybe you think it won't last long, and it ends up being quite long journey, or maybe you think it'll be very
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long, that you'll walk miles and miles, and it ends up being short (you rage-quit). The final destination you're going towards always depends on where you left-off, where you're
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coming from. For example, if you wrote Ada, you'll like chapter four, if you wrote C++, you'll like chapter five.
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*/
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extern void preview_c_file (char * text_file, int width, int height, int x, int y);
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#endif
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