How can we sum the digits of a given number in single statement?

Try something like this


# include < stdio.h >

void main()
{
int num=123456;
int sum=0;

for(;num > 0;sum+=num%10,num/=10); // This is the "single line".

printf("\nsum = [%d]\n", sum);
}


If there is a simpler way to do this, let me know!