Welcome example.c

Signed-off-by: hax <hax@lainlounge.xyz>

example.c

@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+// Function prototypes
+static void foo(int n);
+static void bar(int n);
+static void baz(int n);
+
+/**
+ * Main function
+ * Entry point of the program.
+ */
+int main(int argc, char *argv[]) {
+    if (argc != 2) {
+        fprintf(stderr, "Usage: %s <integer>\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    char *endptr;
+    long input = strtol(argv[1], &endptr, 10);
+
+    if (*endptr != '\0' || input <= 0 || input > INT_MAX) {
+        fprintf(stderr, "Invalid input. Please provide a positive integer.\n");
+        return EXIT_FAILURE;
+    }
+
+    foo((int)input);
+
+    return EXIT_SUCCESS;
+}
+
+/**
+ * Function: foo
+ * Description: Calls the `bar` function.
+ */
+void foo(int n) {
+    printf("In foo with n = %d\n", n);
+    bar(n);
+}
+
+/**
+ * Function: bar
+ * Description: Calls the `baz` function.
+ */
+void bar(int n) {
+    printf("In bar with n = %d\n", n);
+    baz(n);
+}
+
+/**
+ * Function: baz
+ * Description: Final function in the call chain.
+ */
+void baz(int n) {
+    printf("In baz with n = %d\n", n);
+    // Placeholder for actual logic
+}