Certainly! C expressions are combinations of values, variables, operators, and function calls that are evaluated to produce a result. They are the building blocks of C programming and are used extensively to perform computations, make decisions, and control the flow of a program.
Here are some examples of C expressions:
- Arithmetic Expressions:
int a = 5; int b = 3; int result = a + b * 2; // Evaluates to 11
2. Relational Expressions:
int x = 10; int y = 7; int isEqual = (x == y); // Evaluates to 0 (false)
3. Logical Expressions:
int p = 1; int q = 0; int r = 1; int result = (p && q) || r; // Evaluates to 1 (true)
4. Assignment Expressions:
int num = 10; num += 5; // Equivalent to num = num + 5
5. Function Call Expressions:
int sum = add(3, 4); // Calling a function 'add' that returns the sum of two numbers
6. Conditional Expressions (Ternary Operator):
int age = 20; char* category = (age >= 18) ? "Adult" : "Child"; // Evaluates to "Adult"
These are just a few examples of the types of expressions you can use in C. Expressions can be nested and combined in various ways to perform complex computations and make decisions within a C program.