What is the difference between the expression "++a" and "a++"?

C Programming Language > Operators and Enums in C Language > Relational Operators in C

Short Question

4351

Answer:

In the first expression, the increment would happen first on variable a, and the resulting value will be the one to be used. This is also known as a prefix increment. In the second expression, the current value of variable a would the one to be used in an operation, before the value of a itself is incremented. This is also known as postfix increment.

Go to Question List

This Particular section is dedicated to Question & Answer only. If you want learn more about C Programming Language. Then you can visit below links to get more depth on this subject.

C Syllabus

C Tutorial

C Chapterwise Programs

C Chapterwise MCQs

C Chapterwise Q & A

C Free Videos

# C Tutorials # JAVA Tutorials # HTML Tutorials # Computer Fundamental # Data Structure # DBMS Tutorials SQL # C# Language # R Language # PHP # Python # Vue JS

Join Our telegram group to ask Questions

Click below button to join our groups.

Ask Question - CSE

Programming Language - PDF

Related Program List

457. What is an endless loop?

Answer: An endless loop can mean two things. One is that it was designed to loop continuously until the condition within the loop is met, after which a break function would cause the program to step out of the loop. Another idea of an endless loop is when an incorrect loop condition was written, causing the loop to run erroneously forever. Endless loops are oftentimes referred to as infinite loops.

# Tutorial: Loop Introduction in C

Question: Loop control in C Language Short

458. What is wrong with this program statement? void = 10;

Answer: The word void is a reserved word in C language. You cannot use reserved words as a user-defined variable.

# Tutorial: Variable Declaration and Initialization

Question: Variable in C Language Short

459. Is this program statement valid? INT = 10.50;

Answer: Assuming that INT is a variable of type float, this statement is valid. One may think that INT is a reserved word and must not be used for other purposes. However, recall that reserved words are express in lowercase, so the C compiler will not interpret this as a reserved word.

# Tutorial: Variable Declaration and Initialization

Question: Variable in C Language Short

460. What are actual arguments?

Answer: When you create and use functions that need to perform an action on some given values, you need to pass these given values to that function. The values that are being passed into the called function are referred to as actual arguments.

# Tutorial: Function in C

Question: Function in C Language Short

461. What are run-time errors?

Answer: These are errors that occur while the program is being executed. One common instance wherein run-time errors can happen is when you are trying to divide a number by zero. When run-time errors occur, program execution will pause, showing which program line caused the error.

# Tutorial: Basic Structure of C Programming

Question: Overview of C Language Short

462. What is the difference between functions abs() and fabs()?

Answer: These 2 functions basically perform the same action, which is to get the absolute value of the given value. Abs() is used for integer values, while fabs() is used for floating type numbers. Also, the prototype for abs() is under , while fabs() is under .

# Tutorial: Basic Structure of C Programming

Question: Overview of C Language Short

463. What are global variables and how do you declare them?

Answer: Global variables are variables that can be accessed and manipulated anywhere in the program. To make a variable global, place the variable declaration on the upper portion of the program, just after the preprocessor directives section.

# Tutorial: Variable Introduction in C

Question: Variable in C Language Short

464. What are enumerated types?

Answer: Enumerated types allow the programmer to use more meaningful words as values to a variable. Each item in the enumerated type variable is actually associated with a numeric code. For example, one can create an enumerated type variable named DAYS whose values are Monday, Tuesday

# Tutorial: Introduction to Operator

Question: Operators and Enums in C Language Short

465. What does the function toupper() do?

Answer: It is used to convert any letter to its upper case mode. Toupper() function prototype is declared in . Note that this function will only convert a single character, and not an entire string.

# Tutorial: Function in C

Question: Function in C Language Short

466. Is it possible to have a function as a parameter in another function?

Answer: Yes, that is allowed in C programming. You just need to include the entire function prototype into the parameter field of the other function where it is to be used.

# Tutorial: Function in C

Question: Function in C Language Short

Chapterwise Java Program
Chapterwise C Program
Chapterwise Data Structure Program