From 57027fd076504b219f3e886e78535191f6abbb66 Mon Sep 17 00:00:00 2001
From: aqua <aqua@iserlohn-fortress.net>
Date: Sat, 18 Mar 2023 07:17:27 +0200
Subject: Initial commit

Sieve of Eratosthenes
- simple implementation and optimized versions
- Segmented sieve with pthreaded version
---
 sieve_utils.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 sieve_utils.cc

(limited to 'sieve_utils.cc')

diff --git a/sieve_utils.cc b/sieve_utils.cc
new file mode 100644
index 0000000..51bdcf1
--- /dev/null
+++ b/sieve_utils.cc
@@ -0,0 +1,10 @@
+#include "sieve.hh"
+#include <cmath>
+
+[[nodiscard]] bool isPrime(std::size_t x) {
+  for (size_t i = 2; i <= sqrt(x); ++i)
+    if (x % i == 0) {
+      return false;
+    }
+  return true;
+}
-- 
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