Ho hum.

testdata/c/header.h

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+/**
+ * @file header.h
+ * @brief Sample header file for testing.
+ */
+
+#ifndef HEADER_H
+#define HEADER_H
+
+/**
+ * @brief Maximum buffer size.
+ */
+#define MAX_BUFFER_SIZE 1024
+
+/**
+ * @brief Status codes for operations.
+ */
+typedef enum {
+    STATUS_OK = 0,
+    STATUS_ERROR = 1,
+    STATUS_NOT_FOUND = 2
+} Status;
+
+/**
+ * @brief Buffer structure for data storage.
+ */
+typedef struct {
+    char data[MAX_BUFFER_SIZE];
+    int length;
+} Buffer;
+
+/**
+ * @brief Initialize a buffer.
+ * @param buf Pointer to the buffer
+ */
+void buffer_init(Buffer* buf);
+
+/**
+ * @brief Write data to the buffer.
+ * @param buf Pointer to the buffer
+ * @param data Data to write
+ * @param len Length of data
+ * @return Status code
+ */
+Status buffer_write(Buffer* buf, const char* data, int len);
+
+/**
+ * @brief Read data from the buffer.
+ * @param buf Pointer to the buffer
+ * @param out Output buffer
+ * @param max_len Maximum length to read
+ * @return Number of bytes read
+ */
+int buffer_read(Buffer* buf, char* out, int max_len);
+
+#endif /* HEADER_H */

testdata/c/valid.c

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+/**
+ * @file valid.c
+ * @brief Sample C file for testing.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * @brief A simple point structure.
+ */
+struct Point {
+    int x;
+    int y;
+};
+
+/**
+ * @brief Creates a new point.
+ * @param x The x coordinate
+ * @param y The y coordinate
+ * @return A new Point structure
+ */
+struct Point create_point(int x, int y) {
+    struct Point p;
+    p.x = x;
+    p.y = y;
+    return p;
+}
+
+/**
+ * @brief Calculates the distance from origin.
+ * @param p The point
+ * @return The squared distance from origin
+ */
+int distance_squared(struct Point p) {
+    return p.x * p.x + p.y * p.y;
+}
+
+/**
+ * @brief Prints a point to stdout.
+ * @param p The point to print
+ */
+void print_point(struct Point p) {
+    printf("Point(%d, %d)\n", p.x, p.y);
+}
+
+// Simple helper function
+int add(int a, int b) {
+    return a + b;
+}
+
+int main(void) {
+    struct Point p = create_point(3, 4);
+    print_point(p);
+    printf("Distance squared: %d\n", distance_squared(p));
+    return 0;
+}