ccanlint: add #line directives to examples.

[ccan] / tools / ccanlint / tests / examples_exist.c

diff --git a/tools/ccanlint/tests/examples_exist.c b/tools/ccanlint/tests/examples_exist.c
index 7e9dd97cc8afa379ba227108e3fd0354c80b9aff..073a0b2c215c74e57b1b53cbed309a864c1a5aa9 100644 (file)
--- a/tools/ccanlint/tests/examples_exist.c
+++ b/tools/ccanlint/tests/examples_exist.c
@@ -19,7 +19,7 @@
 static char *add_example(struct manifest *m, struct ccan_file *source,
                         struct doc_section *example)
 {
-       char *name;
+       char *name, *linemarker;
        unsigned int i;
        int fd;
        struct ccan_file *f;
@@ -43,6 +43,11 @@ static char *add_example(struct manifest *m, struct ccan_file *source,
                return talloc_asprintf(m, "Creating temporary file %s: %s",
                                       f->fullname, strerror(errno));
 
+       /* Add #line to demark where we are from, so errors are correct! */
+       linemarker = talloc_asprintf(f, "#line %i \"%s\"\n",
+                                    example->srcline+2, source->fullname);
+       write(fd, linemarker, strlen(linemarker));
+
        for (i = 0; i < example->num_lines; i++) {
                if (write(fd, example->lines[i], strlen(example->lines[i]))
                    != strlen(example->lines[i])