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view tests/mini/sieve.d @ 493:017ca8645a1f
Make llvmdc work with llvm 2.4svn revision 54614. Breaks compatibility with llvm 2.3.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 10 Aug 2008 21:09:23 +0200 |
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; }