Re^4: If I was forced to use only one kind of loop for the rest of my days it would be a

[ambrus]

In fact, I belive

for(int a = 0; a<10; a++)
{
    printf("%d\n",a);
}

is equivalent to

{
    int a = 0;
    while(a<10)
    {
        printf("%d\n",a);
        a++;
    }

Your other code,

{
    int a = 0;
    while(a++,a<10)
    {
        printf("%d\n",a);
    }
}

doesn't run the printf statement with a = 0.