Mercurial > projects > ldc
view tests/mini/sieve.d @ 1598:20799faa301d
Merged the patch for dmd bugzilla #3620 by request of downs.
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Sun, 20 Dec 2009 13:58:08 +0000 |
parents | 1bb99290e03a |
children |
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/* Eratosthenes Sieve prime number calculation. */ extern(C) int printf(char*, ...); 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; }