Return to standard C.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/user/app/prime/main.c b/src/user/app/prime/main.c
new file mode 100644
index 0000000..d3ebb7d
--- /dev/null
+++ b/src/user/app/prime/main.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int is_prime(int i) {
+	int j;
+	for (j = 2; j*j <= i; j++) {
+		if (i % j == 0) return 0;
+	}
+	return 1;
+}
+
+int main(char **args) {
+	int i;
+	for (i = 2; i < 1000000; i++) {
+		if (is_prime(i)) printf("%d\t", i);
+	}
+	printf("\nThat's all prime numbers for today.\n");
+
+	return 0;
+}