Latest C Aptitude Question SOLUTION: What is preincrement and post increment?

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(#M40030321) C question C Keep an EYE

What is preincrement and post increment?

Asked In C MAN (10 years ago)

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Azhar Sajjad  (10 years ago)

in post increment after evaluating the expression,the value need to be change.
in pre increment without evaluating the expression ,the value need o be change.

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DHIRENDRA   (10 years ago)

preincrement := first increment then evaluate
example
int i,j,k;
i=10;
j=20
k=++i + ++j;
k=11+21=32
post increment:=first evaluate the increment
example
int i,j,k;
i=10;
j=20;
k=i++ + j++;
k=10+20=30;

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Mani kandan  (9 years ago)

++x is pre-increment and x++ is post-increment . i.e., in the first, x is incremented before being evaluated and in the second, x is incremented after being evaluated.

Eg. • int x = 5;
• printf("x=%dn", ++x);
• printf("x=%dn", x++);

Output is 6 & 6.

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