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a better future

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neingeist 2014-08-18 21:59:02 +02:00
parent 987fff370d
commit 8e65d97d3d
1 changed files with 3 additions and 3 deletions
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6
future.cpp
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@ -6,8 +6,8 @@
#include <chrono> // std::chrono::milliseconds
// a non-optimized way of checking for prime numbers.
bool is_prime (int x) {
for (int i=2; i<x; ++i) {
bool is_prime (long int x) {
for (long int i=2; i<x; ++i) {
if (x%i == 0) return false;
}
return true;
@ -32,7 +32,7 @@ void explicitly_waiting() {
}
void implicitly_waiting() {
int p2 = 838041641;
long int p2 = 685102597328182763;
std::future<bool> fut = std::async(std::launch::async, is_prime, p2);
std::cout << "just getting the result, doing an implicit wait():" << std::endl;