Dev C++ Operator
Posted By admin On 18.04.20- C++ Operator List
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Operator Overloading in C In C, we can make operators to work for user defined classes. This means C has the ability to provide the operators with a special meaning for a data type, this ability is known as operator overloading. Dec 12, 2016 Apa itu operator c?, apa saja macam-macam operator c?, bagaimana cara menggunakan operator pada c? Pertanyaan-pertanyaan seperti di atas sering kita alami ketika baru belajar bahasa pemrograman C, bukan bertanya tentang operator saja yang kita alami bahkan tidak terhitung pertanyaan-pertanyaan yang sering kita lontarkan tentang. Apr 04, 2020 In C, ternary operator allows executing different code depending on the value of a condition, and the result of the expression is the result of the executed code. The ternary operator uses 3 operands. It evaluates a condition and after that chooses one of its two branches to execute, depending upon the result of condition.
C Program to Multiply two Numbers In this program, user is asked to enter two numbers (floating point numbers). Then, the product of those two numbers is stored in a variable and displayed on the screen.
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An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. C++ is rich in built-in operators and provide the following types of operators −
- Arithmetic Operators
- Relational Operators
- Logical Operators
- Bitwise Operators
- Assignment Operators
- Misc Operators
This chapter will examine the arithmetic, relational, logical, bitwise, assignment and other operators one by one.
C++ Operator List
Arithmetic Operators
There are following arithmetic operators supported by C++ language −
Assume variable A holds 10 and variable B holds 20, then −
| Operator | Description | Example |
|---|---|---|
| + | Adds two operands | A + B will give 30 |
| - | Subtracts second operand from the first | A - B will give -10 |
| * | Multiplies both operands | A * B will give 200 |
| / | Divides numerator by de-numerator | B / A will give 2 |
| % | Modulus Operator and remainder of after an integer division | B % A will give 0 |
| ++ | Increment operator, increases integer value by one | A++ will give 11 |
| -- | Decrement operator, decreases integer value by one | A-- will give 9 |
Relational Operators
There are following relational operators supported by C++ language
Assume variable A holds 10 and variable B holds 20, then −
| Operator | Description | Example |
|---|---|---|
| Checks if the values of two operands are equal or not, if yes then condition becomes true. | (A B) is not true. | |
| != | Checks if the values of two operands are equal or not, if values are not equal then condition becomes true. | (A != B) is true. |
| > | Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true. | (A > B) is not true. |
| < | Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true. | (A < B) is true. |
| >= | Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true. | (A >= B) is not true. |
| <= | Checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true. | (A <= B) is true. |
Logical Operators
There are following logical operators supported by C++ language.
Assume variable A holds 1 and variable B holds 0, then −
| Operator | Description | Example |
|---|---|---|
| && | Called Logical AND operator. If both the operands are non-zero, then condition becomes true. | (A && B) is false. |
| Called Logical OR Operator. If any of the two operands is non-zero, then condition becomes true. | (A B) is true. | |
| ! | Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true, then Logical NOT operator will make false. | !(A && B) is true. |
Bitwise Operators
Bitwise operator works on bits and perform bit-by-bit operation. The truth tables for &, , and ^ are as follows −
| p | q | p & q | p q | p ^ q |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 1 | 1 |
| 1 | 1 | 1 | 1 | 0 |
| 1 | 0 | 0 | 1 | 1 |
Assume if A = 60; and B = 13; now in binary format they will be as follows −
A = 0011 1100
C++ What Is Operator
B = 0000 1101
-----------------
A&B = 0000 1100
A B = 0011 1101
A^B = 0011 0001
~A = 1100 0011
The Bitwise operators supported by C++ language are listed in the following table. Assume variable A holds 60 and variable B holds 13, then −
| Operator | Description | Example |
|---|---|---|
| & | Binary AND Operator copies a bit to the result if it exists in both operands. | (A & B) will give 12 which is 0000 1100 |
| Binary OR Operator copies a bit if it exists in either operand. | (A B) will give 61 which is 0011 1101 | |
| ^ | Binary XOR Operator copies the bit if it is set in one operand but not both. | (A ^ B) will give 49 which is 0011 0001 |
| ~ | Binary Ones Complement Operator is unary and has the effect of 'flipping' bits. | (~A ) will give -61 which is 1100 0011 in 2's complement form due to a signed binary number. |
| << | Binary Left Shift Operator. The left operands value is moved left by the number of bits specified by the right operand. | A << 2 will give 240 which is 1111 0000 |
| >> | Binary Right Shift Operator. The left operands value is moved right by the number of bits specified by the right operand. | A >> 2 will give 15 which is 0000 1111 |
Assignment Operators
There are following assignment operators supported by C++ language −
Dev C Operator Download
| Operator | Description | Example |
|---|---|---|
| = | Simple assignment operator, Assigns values from right side operands to left side operand. | C = A + B will assign value of A + B into C |
| += | Add AND assignment operator, It adds right operand to the left operand and assign the result to left operand. | C += A is equivalent to C = C + A |
| -= | Subtract AND assignment operator, It subtracts right operand from the left operand and assign the result to left operand. | C -= A is equivalent to C = C - A |
| *= | Multiply AND assignment operator, It multiplies right operand with the left operand and assign the result to left operand. | C *= A is equivalent to C = C * A |
| /= | Divide AND assignment operator, It divides left operand with the right operand and assign the result to left operand. | C /= A is equivalent to C = C / A |
| %= | Modulus AND assignment operator, It takes modulus using two operands and assign the result to left operand. | C %= A is equivalent to C = C % A |
| <<= | Left shift AND assignment operator. | C <<= 2 is same as C = C << 2 |
| >>= | Right shift AND assignment operator. | C >>= 2 is same as C = C >> 2 |
| &= | Bitwise AND assignment operator. | C &= 2 is same as C = C & 2 |
| ^= | Bitwise exclusive OR and assignment operator. | C ^= 2 is same as C = C ^ 2 |
| = | Bitwise inclusive OR and assignment operator. | C = 2 is same as C = C 2 |
Misc Operators
The following table lists some other operators that C++ supports.
| Sr.No | Operator & Description |
|---|---|
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| 2 | Condition ? X : Y Conditional operator (?). If Condition is true then it returns value of X otherwise returns value of Y. |
| 3 | , Comma operator causes a sequence of operations to be performed. The value of the entire comma expression is the value of the last expression of the comma-separated list. |
| 4 | . (dot) and -> (arrow) Member operators are used to reference individual members of classes, structures, and unions. |
| 5 | Cast Casting operators convert one data type to another. For example, int(2.2000) would return 2. |
| 6 | & Pointer operator & returns the address of a variable. For example &a; will give actual address of the variable. |
| 7 | * Pointer operator * is pointer to a variable. For example *var; will pointer to a variable var. |
C++ Function Operator
Operators Precedence in C++
Operator precedence determines the grouping of terms in an expression. This affects how an expression is evaluated. Certain operators have higher precedence than others; for example, the multiplication operator has higher precedence than the addition operator −
For example x = 7 + 3 * 2; here, x is assigned 13, not 20 because operator * has higher precedence than +, so it first gets multiplied with 3*2 and then adds into 7.
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Here, operators with the highest precedence appear at the top of the table, those with the lowest appear at the bottom. Within an expression, higher precedence operators will be evaluated first.
Contoh Program Dev C++ Operator Logika
| Category | Operator | Associativity |
|---|---|---|
| Postfix | () [] -> . ++ - - | Left to right |
| Unary | + - ! ~ ++ - - (type)* & sizeof | Right to left |
| Multiplicative | * / % | Left to right |
| Additive | + - | Left to right |
| Shift | << >> | Left to right |
| Relational | < <= > >= | Left to right |
| Equality | != | Left to right |
| Bitwise AND | & | Left to right |
| Bitwise XOR | ^ | Left to right |
| Bitwise OR | Left to right | |
| Logical AND | && | Left to right |
| Logical OR | Left to right | |
| Conditional | ?: | Right to left |
| Assignment | = += -= *= /= %=>>= <<= &= ^= = | Right to left |
| Comma | , | Left to right |