variadic func.

Question

in a function like this

int max(int count,...) {
va_list counter;
int max = va_arg(counter,int);
va_start(counter,count);
for(int i=1;i<count;i++){
int temp = va_arg(counter,int);
if (max<temp)
max =temp;}
va_end(counter);
return max;
}

why i had to add ""int temp = va_arg(counter,int);"" into the for loop to make the code work ?

why i couldnt just say that

int max(int count,...) {
va_list counter;
int max = va_arg(counter,int);
va_start(counter,count);
for(int i=1;i<count;i++){
if (max<va_arg(counter,int))
max =va_arg(counter,int);}
va_end(counter);
return max;
}

Answer 1

It gives different values ! <DD>