Mercurial > projects > ldc
view test/sieve.d @ 128:e5fe8521bbfa trunk
[svn r132] Added some tests. some will fail at the moment.
author | lindquist |
---|---|
date | Fri, 30 Nov 2007 17:12:08 +0100 |
parents | c53b6e3fe49a |
children | d9d5d59873d8 |
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/* Eratosthenes Sieve prime number calculation. */ bool flags[8191]; int main() { int i, prime, k, count, iter; printf("10 iterations\n"); for (iter = 1; iter <= 10; iter++) { count = 0; flags[] = true; for (i = 0; i < flags.length; i++) { if (flags[i]) { prime = i + i + 3; k = i + prime; while (k < flags.length) { flags[k] = false; k += prime; } count += 1; } } } printf("%d primes\n", count); return 0; }