increment and decrement operators in c

these operators are used to increment a value by 1 (++) and it uis used to decrement a value by 1 by (–)

increment operator is implimented in two forms

1)pre-increment

here, the value incremented first and and then assigned

example: ++a

a = 5;

b =++a;

result

a=6

b=6

2)post-increment

here, the value is assigned first and the incremented

a = 5;

b =a++;

result

a=6

b=5

3)pre-decrement

here, the value decremented first and and then assigned

a = 5;

b =--a;

result

a=4

b=4

4 )post-decrement

here, the value is assigned first and then decremented

a = 5;

b =a--;

result

a=4

b=5

example:

//codeskulls

#include

int main()

{

int a = 1, b = 2;

float c = 3.7, d = 4.67;

printf("++a = %d \n", ++a);

printf("--b = %d \n", --b);

printf("++c = %f \n", ++c);

printf("--d = %f \n", --d);

return 0;

}

//codeskulls

output:

++a = 2

--b = 1

++c = 4.700000

--d = 3.670000

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