The principal disadvantage of the approach is that the transfer of control from one thread to another within the same process requires a mode switch to the kernel

try a gofundme or ask your family for money slowly and slowly then save it or do trades on craigslist. that's all i know

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt