+#include <tools/ccanlint/ccanlint.h>
+#include <tools/tools.h>
+#include <ccan/talloc/talloc.h>
+#include <ccan/str/str.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <string.h>
+#include <ctype.h>
+
+static void examples_relevant_check(struct manifest *m,
+ bool keep,
+ unsigned int *timeleft,
+ struct score *score)
+{
+ struct ccan_file *f;
+ struct doc_section *d;
+
+ list_for_each(&m->h_files, f, list) {
+ list_for_each(get_ccan_file_docs(f), d, list) {
+ unsigned int i;
+ bool found = false;
+
+ if (!streq(d->type, "example"))
+ continue;
+
+ for (i = 0; i < d->num_lines; i++) {
+ if (strstr(d->lines[i], d->function))
+ found = true;
+ }
+
+ if (!found) {
+ score_file_error(score, f, d->srcline+1,
+ "Example for %s doesn't"
+ " mention it", d->function);
+ }
+ }
+ }
+
+ if (!score->error) {
+ score->score = score->total;
+ score->pass = true;
+ return;
+ }
+}
+
+struct ccanlint examples_relevant = {
+ .key = "examples_relevant",
+ .name = "Example: sections demonstrate appropriate function",
+ .check = examples_relevant_check,
+ .needs = "examples_exist"
+};
+
+REGISTER_TEST(examples_relevant);