Prime checker and finder.
Compile:
make
Test:
make test
Clean up:
make clean
prime - Prime checker and finder
usage: prime [-h|--help]
prime [-s|--short] [--] <num>...
prime [-s|--short] -r|--range [<start>] <stop>
prime [-h|--help]
Show this help message and exit.
prime [-s|--short] [--] <num>...
Print each prime number of the given <num>s. If --short is specified,
instead of printing each prime number, output a summary in the following
format, where P is the number of primes and T is the number of <num>s:
P of T (P/T%)
prime [-s|--short] -r|--range [<start>] <stop>
Print all primes between <start> (inclusive) and <stop> (exclusive). If not
specified, <start> defaults to 0. If --short is specified, instead of
printing each prime number, output a summary in the following format, where
P is the number of primes and T is the number of numbers (<stop> - <start>):
P of T (P/T%) in [<start>, <stop>)
Check whether the given numbers are prime:
$ bin/prime 1 2 3 4 17 18 19
2
3
17
19
Print a summary about the given numbers' primeness:
$ bin/prime -s 1 2 3 4 17 18 19
4 of 7 (57.142857%)
Find all primes in the range [start, stop):
$ bin/prime -r 2 7
2
3
5
Print a summary about the given range (start defaults to 0):
$ bin/prime -rs 1000000
78498 of 1000000 (7.849800%) in [0, 1000000)