Index » General » import std.stdio; void main() { size_t count; bool[8191] flags; writeln("10 iterations"); // using iter as a throwaway variable foreach (iter; 1 .. 11) { count = 0; flags[] = 1; foreach (index, flag; flags) { if (flag) { size_t prime = index + index + 3; size_t k = index + prime; while (k < flags.length) { flags[k] = 0; k += prime; } count += 1; } } } writefln("%d primes", &count); }
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August 01, 2017 Re: import std.stdio; void main() { size_t count; bool[8191] flags; writeln("10 iterations"); // using iter as a throwaway variable foreach (iter; 1 .. 11) { count = 0; flags[] = 1; foreach (index, flag; flags) { if (flag) { size_t prime = index + index + 3; size_t k = index + prime; while (k < flags.length) { flags[k] = 0; k += prime; } count += 1; } } } writefln("%d primes", &count); } | ||||
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 Posted in reply to enter per ner | On Tuesday, 1 August 2017 at 14:08:26 UTC, enter per ner wrote:
> whats the mistake
wrong forum.
this is for d. learn.
Also you posted the text in the title.
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August 01, 2017 Re: import std.stdio; void main() { size_t count; bool[8191] flags; writeln("10 iterations"); // using iter as a throwaway variable foreach (iter; 1 .. 11) { count = 0; flags[] = 1; foreach (index, flag; flags) { if (flag) { size_t prime = index + index + 3; size_t k = index + prime; while (k < flags.length) { flags[k] = 0; k += prime; } count += 1; } } } writefln("%d primes", &count); } | ||||
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 Posted in reply to enter per ner | On Tuesday, 1 August 2017 at 14:08:26 UTC, enter per ner wrote: > whats the mistake For everyone's sanity: https://run.dlang.io/is/bjlaNy | |||
August 01, 2017 Re: import std.stdio; void main() { size_t count; bool[8191] flags; writeln("10 iterations"); // using iter as a throwaway variable foreach (iter; 1 .. 11) { count = 0; flags[] = 1; foreach (index, flag; flags) { if (flag) { size_t prime = index + index + 3; size_t k = index + prime; while (k < flags.length) { flags[k] = 0; k += prime; } count += 1; } } } writefln("%d primes", &count); } | ||||
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Posted in reply to enter per ner | On Tuesday, 1 August 2017 at 14:08:26 UTC, enter per ner wrote:
> whats the mistake
you are passing a ptr to writefln.
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