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You're reading from  Learning C for Arduino

Product typeBook
Published inMar 2017
Reading LevelBeginner
PublisherPackt
ISBN-139781787120099
Edition1st Edition
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Author (1)
Syed Omar Faruk Towaha
Syed Omar Faruk Towaha
author image
Syed Omar Faruk Towaha

Syed Omar Faruk Towaha is a data scientist, and currently working at Meta. He has two bachelor's degrees, one in Physics, another in Computer Science and a Master's in Data Science. He is based in London, England, and has interests in data science and IoTs. While Syed is not busy with his jobs, he uses his time to write something about new technologies. His recent publications include Building Smart Drones With ESP8266 and Arduino, Introduction to Rust Programming, Learning C for Arduino, and JavaScript Projects for Kids.
Read more about Syed Omar Faruk Towaha

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Data types


In our day-to-day life, we use numbers, alphabets, words, and sentences. These can be defined as data. Again, numbers can be divided into two types: fraction and non-fraction, or integer and non-integer. Alphabets and symbols can be defined as characters. Let's look at what we call them in C, and their memory allocation. I will explain what memory allocation is and how you can find out how much memory a data type is consuming later.

Integers

Numbers that can be written without a fractional part are called integers: 5, 28, 273, 100, 986,343 are integers. There are negative integers too: -56, -87, -23,453, -1,000, and so on. They are called int in C programming. If we want to set a variable (number) equal to an integer (here, 24) we can write the following:

int number = 24;

An integer occupies 2 bytes (16 bits) or 4 bytes (32 bits) of memory depending on the processor's architecture. On 32-bit computers, an integer occupies 2 bytes of memory, and on 64-bit computers, integer occupies...

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Learning C for Arduino
Published in: Mar 2017Publisher: PacktISBN-13: 9781787120099

Author (1)

author image
Syed Omar Faruk Towaha

Syed Omar Faruk Towaha is a data scientist, and currently working at Meta. He has two bachelor's degrees, one in Physics, another in Computer Science and a Master's in Data Science. He is based in London, England, and has interests in data science and IoTs. While Syed is not busy with his jobs, he uses his time to write something about new technologies. His recent publications include Building Smart Drones With ESP8266 and Arduino, Introduction to Rust Programming, Learning C for Arduino, and JavaScript Projects for Kids.
Read more about Syed Omar Faruk Towaha