tal: allow notifiers on NULL.

[ccan] / ccan / opt / private.h

diff --git a/ccan/opt/private.h b/ccan/opt/private.h
index e4ad24a2be9e7947f862d295bef76b330c735c90..47b8c4e056eead80956103965c1324033da9b05a 100644 (file)
--- a/ccan/opt/private.h
+++ b/ccan/opt/private.h
@@ -1,4 +1,4 @@
-/* Licensed under GPLv3+ - see LICENSE file for details */
+/* Licensed under GPLv2+ - see LICENSE file for details */
 #ifndef CCAN_OPT_PRIVATE_H
 #define CCAN_OPT_PRIVATE_H
 
@@ -7,13 +7,20 @@ extern unsigned int opt_count, opt_num_short, opt_num_short_arg, opt_num_long;
 
 extern const char *opt_argv0;
 
-#define subtable_of(entry) ((struct opt_table *)((entry)->names))
+#define subtable_of(entry) ((const struct opt_table *)((entry)->names))
 
 const char *first_sopt(unsigned *i);
 const char *next_sopt(const char *names, unsigned *i);
 const char *first_lopt(unsigned *i, unsigned *len);
 const char *next_lopt(const char *p, unsigned *i, unsigned *len);
 
+struct opt_alloc {
+       void *(*alloc)(size_t size);
+       void *(*realloc)(void *ptr, size_t size);
+       void (*free)(void *ptr);
+};
+extern struct opt_alloc opt_alloc;
+
 int parse_one(int *argc, char *argv[], enum opt_type is_early, unsigned *offset,
              void (*errlog)(const char *fmt, ...));