Prerequisite – Operators in C
In C, assignment operators are used to assign a value to a variable. They combine the assignment operation (=) with an arithmetic, bitwise, or other operation. Here are the assignment operators in C:
List of Assignment Operators in C:
| Operator | Example | Equivalent to |
|---|---|---|
| = | a = b | a = b |
| += | a += b | a = a + b |
| -= | a -= b | a = a – b |
| *= | a *= b | a = a * b |
| /= | a /= b | a = a / b |
| %= | a %= b | a = a % b |
| <<= | a <<= b | a = a << b |
| >>= | a >>= b | a = a >> b |
| &= | a &= b | a = a & b |
| ^= | a ^= b | a = a ^ b |
| |= | a |= b | a = a | b |
Example:
Here’s an example code that demonstrates the use of assignment operators in C:
#include <stdio.h>
int main() {
int a = 10;
int b = 20;
printf("a = %d, b = %d\n", a, b);
a += b;
printf("a += b: %d\n", a);
a -= b;
printf("a -= b: %d\n", a);
a *= b;
printf("a *= b: %d\n", a);
a /= b;
printf("a /= b: %d\n", a);
a %= b;
printf("a %%= b: %d\n", a);
a <<= b;
printf("a <<= b: %d\n", a);
a >>= b;
printf("a >>= b: %d\n", a);
a &= b;
printf("a &= b: %d\n", a);
a ^= b;
printf("a ^= b: %d\n", a);
a |= b;
printf("a |= b: %d\n", a);
return 0;
}
When you run this code, you will see the following output:
a = 10, b = 20 a += b: 30 a -= b: 10 a *= b: 200 a /= b: 10 a %= b: 10 a <<= b: 10240 a >>= b: 20 a &= b: 20 a ^= b: 0 a |= b: 20
This output shows the results of using each of the assignment operators with the variables a and b. The value of a changes after each operation, and the result is printed to the console.
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