Data Types and Sizes

Explore the fundamental data types in C, including integers and characters, and understand how their sizes affect memory allocation. Learn about signed and unsigned qualifiers that influence the range of values variables can represent. This lesson helps you grasp essential concepts needed to define and use variables correctly in C programming.

We'll cover the following...

Basic data types in C
Signed and unsigned qualifiers
How many bytes on our machine

To define a variable, we must specify its data type. The data type of a variable indicates what kind of data can be assigned to it. It also impacts how much memory will be allocated for storing the data in that variable.

Basic data types in C

There are eight basic data types in C. We describe these and the number of bytes required to store a value of each type in the table below.

However, note that the C standard does not specify the exact number of bytes to be used for a data type—it specifies a range of ...

1.Introduction to C Programming

2.Data Types in C

3.C Operators and C Expressions

4.Control Flow in C

5.Functions in C

6.Complex Data Types

7.Stack vs. Heap

8.Pointers in C

9.C String

10.Input and Output Stream

11.Macros and the C Preprocessor

12.Header Files, Compiling, and Linking

Project

13.C Debugger

14.Code Profiling

15.Parallel Programming in C

Mini Project

16.Conclusion

17.Miscellaneous

18.Appendix: Setting Up the Environment

Data Types and Sizes

Basic data types in C