Renaming all folders

02_FileIO/fopenflags.c

@@ -0,0 +1,36 @@
+/*
+ * SPDX-License-Identifier: MIT
+ * Copyright (c) 2025 Fabio Scotto di Santolo
+ */
+
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(void)
+{
+	int fd;
+	fd = open("test.txt", O_CREAT | O_EXCL);
+	if (fd == -1)
+		perror("First open");
+	close(fd);
+
+	fd = open("test.txt", O_CREAT | O_EXCL);
+	if (fd == -1)
+		perror("Second open");
+	close(fd);
+
+	fd = open("test.txt", O_CREAT | O_EXCL);
+	if (fd == -1)
+		perror("Third open");
+	close(fd);
+
+	fd = open("test.txt", O_CREAT);
+	if (fd == -1)
+		perror("Fourth open");
+	close(fd);
+
+	return 0;
+}