Question

How to use pre and post increment and decrement operators in C

Answer 1

#include <stdio.h>

int main(void)
{
    int a, b, n = 13;
        
    a = ++n; 
    printf("a = ++n = %d n = %d\n", a, n);
    
    b = n++; 
    printf("b = n++ = %d n = %d\n", b, n);
    
    a = n--; 
    printf("a = n-- = %d n = %d\n", a, n);
    
    b = --n; 
    printf("b = --n = %d n = %d\n", b, n);

    return 0;
}

   
/*
run:
 
a = ++n = 14 n = 14
b = n++ = 14 n = 15
a = n-- = 15 n = 14
b = --n = 13 n = 13

*/

 

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