Commit f8bf3418 authored by French, Robert's avatar French, Robert
Browse files

Solve 2 primes in C++11

parent 76b85f51

.gitlab-ci.yml

+6 −2
Original line number Diff line number Diff line
@@ -42,7 +42,9 @@ build:xk7: 
  <<: *build

  <<: *xk7

  script:

  - module load python && ./breakable.py -t build_hello_world

  - module swap PrgEnv-pgi PrgEnv-gnu 

  - module load python 

  - ./breakable.py -t build_hello_world



run:xk7:

  <<: *run
@@ -54,7 +56,9 @@ build:xc30: 
  <<: *build

  <<: *xc30

  script:

  - module load python && ./breakable.py -t build_hello_world

  - module swap PrgEnv-intel PrgEnv-gnu

  - module load python

  - ./breakable.py -t build_hello_world



run:xc30:

  <<: *run

Breakfile.py

+2 −3
Original line number Diff line number Diff line
@@ -3,7 +3,6 @@ import platform 


class BreakTasks(object):



  @provides("hello_world.exe")

  def build_hello_world(self):

    needs("main.cpp")

    self.CC("main.cpp -o hello_world.exe")
@@ -27,11 +26,11 @@ class Platform(object): 


class Mac(Platform):

  name = "Mac OS X"

  CC = which("c++")

  CC = which("c++", defaults=["-std=c++11","-stdlib=libc++"])



class Linux(Platform):

  name = "Linux"

  CC = which("CC")

  CC = which("CC", defaults=["-std=c++11"])



def detect_platform():

  if platform.system() == 'Linux':

main.cpp

+34 −0
Original line number Diff line number Diff line 
#include <iostream>

#include <array>

#include <string>

#include "platform.h"



typedef uint64_t natural;



bool is_coprime(natural known_prime, natural potential_coprime) {

  return (potential_coprime % known_prime != 0);

}



bool is_not_coprime(natural known_prime, natural potential_coprime) {

  return ! is_coprime(known_prime, potential_coprime);

}



bool is_relatively_prime_to_list(std::array<natural,5> known_primes, natural potential_coprime) {

  for (auto it = known_primes.begin(); it != known_primes.end(); ++it) {

    if (is_not_coprime(*it, potential_coprime)) return false;

  }

  return true;

}



std::string bool_to_yes_or_no(bool boolean_value) {

  return (boolean_value == true ? "Yes" : "No");

}



void print_whether_N_is_prime(std::array<natural,5> known_primes, natural N) {

  std::cout << "Is " << N << " a prime number? ";

  bool result = is_relatively_prime_to_list(known_primes, N);

  std::cout << bool_to_yes_or_no(result);

  std::cout << std::endl;

}



int main(int argc, char** argv) {

  std::cout << "Hello from " << PLATFORM << "\n";

  std::array<natural,5> known_primes = { 2, 3, 5, 7, 11 };

  print_whether_N_is_prime(known_primes, 12);

  print_whether_N_is_prime(known_primes, 13);

  return 0;

}