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view tests/mini/sieve.d @ 1600:a60e7d1ce3ee
Folded in a patch by Troy Straszheim to better report errors with -run.
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Mon, 28 Dec 2009 02:23:41 +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; }