compiler, list, noerr, sparse_bsearch, str, str_talloc, stringmap, talloc_link, tdb, tdb2, typesafe_cb: fix examples

Phew, now they call compile!

ccan/compiler/compiler.h

@@ -146,7 +146,7 @@
  *
  * Example:
  * // buf param may be freed by this; need return value!
- * static char *WARN_UNUSED_RESULT enlarge(const char *buf, unsigned *size)
+ * static char *WARN_UNUSED_RESULT enlarge(char *buf, unsigned *size)
  * {
  *	return realloc(buf, (*size) *= 2);
  * }

ccan/list/list.h

@@ -56,7 +56,7 @@ struct list_head
  *	{
  *		struct child *c;
  *
- *		printf("%s (%u children):\n", p->name, parent->num_children);
+ *		printf("%s (%u children):\n", p->name, p->num_children);
  *		list_check(&p->children, "bad child list");
  *		list_for_each(&p->children, c, list)
  *			printf(" -> %s\n", c->name);
@@ -70,11 +70,27 @@ struct list_head *list_check(const struct list_head *h, const char *abortstr);
 #define debug_list(h) (h)
 #endif
 
+/**
+ * LIST_HEAD - define and initalize an empty list_head
+ * @name: the name of the list.
+ *
+ * The LIST_HEAD macro defines a list_head and initializes it to an empty
+ * list.  It can be prepended by "static" to define a static list_head.
+ *
+ * Example:
+ *	static LIST_HEAD(my_global_list);
+ */
+#define LIST_HEAD(name) \
+	struct list_head name = { { &name.n, &name.n } }
+
 /**
  * list_head_init - initialize a list_head
  * @h: the list_head to set to the empty list
  *
  * Example:
+ *	...
+ *	struct parent *parent = malloc(sizeof(*parent));
+ *
  *	list_head_init(&parent->children);
  *	parent->num_children = 0;
  */
@@ -83,23 +99,6 @@ static inline void list_head_init(struct list_head *h)
 	h->n.next = h->n.prev = &h->n;
 }
 
-/**
- * LIST_HEAD - define and initalized empty list_head
- * @name: the name of the list.
- *
- * The LIST_HEAD macro defines a list_head and initializes it to an empty
- * list.  It can be prepended by "static" to define a static list_head.
- *
- * Example:
- *	// Header:
- *	extern struct list_head my_list;
- *
- *	// C file:
- *	LIST_HEAD(my_list);
- */
-#define LIST_HEAD(name) \
-	struct list_head name = { { &name.n, &name.n } }
-
 /**
  * list_add - add an entry at the start of a linked list.
  * @h: the list_head to add the node to
@@ -107,6 +106,8 @@ static inline void list_head_init(struct list_head *h)
  *
  * The list_node does not need to be initialized; it will be overwritten.
  * Example:
+ *	struct child *child;
+ *
  *	list_add(&parent->children, &child->list);
  *	parent->num_children++;
  */
@@ -179,9 +180,11 @@ static inline bool list_empty(const struct list_head *h)
  * @member: the list_node member of the type
  *
  * Example:
- *	struct child *c;
  *	// First list entry is children.next; convert back to child.
- *	c = list_entry(parent->children.next, struct child, list);
+ *	child = list_entry(parent->children.n.next, struct child, list);
+ *
+ * See Also:
+ *	list_top(), list_for_each()
  */
 #define list_entry(n, type, member) container_of(n, type, member)
 
@@ -225,9 +228,8 @@ static inline bool list_empty(const struct list_head *h)
  * a for loop, so you can break and continue as normal.
  *
  * Example:
- *	struct child *c;
- *	list_for_each(&parent->children, c, list)
- *		printf("Name: %s\n", c->name);
+ *	list_for_each(&parent->children, child, list)
+ *		printf("Name: %s\n", child->name);
  */
 #define list_for_each(h, i, member)					\
 	for (i = container_of_var(debug_list(h)->n.next, i, member);	\
@@ -246,9 +248,9 @@ static inline bool list_empty(const struct list_head *h)
  * @nxt is used to hold the next element, so you can delete @i from the list.
  *
  * Example:
- *	struct child *c, *n;
- *	list_for_each_safe(&parent->children, c, n, list) {
- *		list_del(&c->list);
+ *	struct child *next;
+ *	list_for_each_safe(&parent->children, child, next, list) {
+ *		list_del(&child->list);
  *		parent->num_children--;
  *	}
  */

ccan/noerr/_info

@@ -19,7 +19,7 @@
  *	#include <errno.h>
  *	#include <ccan/noerr/noerr.h>
  *
- *	bool write_string_to_file(const char *file, const char *string)
+ *	static bool write_string_to_file(const char *file, const char *string)
  *	{
  *		int ret, fd = open(file, O_WRONLY|O_CREAT|O_EXCL, 0600);
  *		if (fd < 0)

ccan/sparse_bsearch/_info

@@ -26,7 +26,7 @@
  *	static unsigned int values[] = { 1, 7, 11, 1235, 99999 };
  *
  *	// Return true if this value is in set, and remove it.
- *	bool remove_from_values(unsigned int val)
+ *	static bool remove_from_values(unsigned int val)
  *	{
  *		unsigned int *p;
  *		// We use 5 here, but ccan/array_size.h is better!

ccan/sparse_bsearch/sparse_bsearch.h

@@ -27,7 +27,7 @@
  *	static unsigned int values[] = { 1, 7, 11, 1235, 99999 };
  *
  *	// Return true if this value is in set, and remove it.
- *	bool remove_from_values(unsigned int val)
+ *	static bool remove_from_values(unsigned int val)
  *	{
  *		unsigned int *p;
  *		p = sparse_bsearch(&val, values, 5, val_cmp, val_valid);

ccan/str/str.h

@@ -11,7 +11,7 @@
  * This macro is arguably more readable than "!strcmp(a, b)".
  *
  * Example:
- *	if (streq(str, ""))
+ *	if (streq(somestring, ""))
  *		printf("String is empty!\n");
  */
 #define streq(a,b) (strcmp((a),(b)) == 0)
@@ -22,8 +22,8 @@
  * @prefix: prefix to look for at start of str
  *
  * Example:
- *	if (strstarts(str, "foo"))
- *		printf("String %s begins with 'foo'!\n", str);
+ *	if (strstarts(somestring, "foo"))
+ *		printf("String %s begins with 'foo'!\n", somestring);
  */
 #define strstarts(str,prefix) (strncmp((str),(prefix),strlen(prefix)) == 0)
 
@@ -33,8 +33,8 @@
  * @postfix: postfix to look for at end of str
  *
  * Example:
- *	if (strends(str, "foo"))
- *		printf("String %s end with 'foo'!\n", str);
+ *	if (strends(somestring, "foo"))
+ *		printf("String %s end with 'foo'!\n", somestring);
  */
 static inline bool strends(const char *str, const char *postfix)
 {

ccan/str_talloc/str_talloc.h

@@ -20,7 +20,10 @@
  * @nump to find the array length.
  *
  * Example:
- *	unsigned int count_long_lines(const char *text)
+ *	#include <ccan/talloc/talloc.h>
+ *	#include <ccan/str_talloc/str_talloc.h>
+ *	...
+ *	static unsigned int count_long_lines(const char *string)
  *	{
  *		char **lines;
  *		unsigned int i, long_lines = 0;
@@ -49,10 +52,9 @@ char **strsplit(const void *ctx, const char *string, const char *delims,
  *
  * Example:
  *	// Append the string "--EOL" to each line.
- *	char *append_to_all_lines(const char *string)
+ *	static char *append_to_all_lines(const char *string)
  *	{
  *		char **lines, *ret;
- *		unsigned int i, num, newnum;
  *
  *		lines = strsplit(NULL, string, "\n", NULL);
  *		ret = strjoin(NULL, lines, "-- EOL\n");

ccan/stringmap/_info

@@ -12,22 +12,22 @@
  *
  * Example:
  *
- * #include <ccan/stringmap/stringmap.h>                                                                                                                                        
+ * #include <ccan/stringmap/stringmap.h>
  *
- * static const char *get_string(void) {                                                                                                                                        
- *      static char buffer[4096];                                                                                                                                               
- *      char *tail;                                                                                                                                                             
- *      if (!fgets(buffer, sizeof(buffer), stdin))                                                                                                                              
- *              return NULL;                                                                                                                                                    
- *      tail = strchr(buffer, 0);                                                                                                                                               
- *      if (tail>buffer && tail[-1]=='\n')                                                                                                                                      
- *              *--tail = 0;                                                                                                                                                    
- *      if (!*buffer)                                                                                                                                                           
- *              return NULL;                                                                                                                                                    
- *      return buffer;                                                                                                                                                          
- * }                                                                                                                                                                            
+ * static const char *get_string(void) {
+ *      static char buffer[4096];
+ *      char *tail;
+ *      if (!fgets(buffer, sizeof(buffer), stdin))
+ *              return NULL;
+ *      tail = strchr(buffer, 0);
+ *      if (tail>buffer && tail[-1]=='\n')
+ *              *--tail = 0;
+ *      if (!*buffer)
+ *              return NULL;
+ *      return buffer;
+ * }
  *
- * int main(void) {                                                                                                                                                             
+ * int main(void) {
  *      stringmap(int) map = stringmap_new(NULL);
  *      const char *string;
  *
@@ -49,8 +49,8 @@
  *    return 0;
  * }
  *
- *	Authors: Joey Adams, Anders Magnusson
- *	License: BSD
+ * Authors: Joey Adams, Anders Magnusson
+ * License: BSD
  */
 int main(int argc, char *argv[])
 {

ccan/talloc_link/_info

@@ -29,7 +29,7 @@
  *	static struct upcache *cache;
  *	static unsigned int cache_hits = 0;
  *	#define CACHE_SIZE 4
- *	void init_upcase(void)
+ *	static void init_upcase(void)
  *	{
  *		cache = talloc_zero_array(NULL, struct upcache, CACHE_SIZE);
  *	}
@@ -70,7 +70,7 @@
  *	}
  *
  *	// If you want to keep the result, talloc_link it.
- *	const char *get_upcase(const char *str)
+ *	static const char *get_upcase(const char *str)
  *	{
  *		struct upcache *uc = lookup_upcase(str);
  *		if (!uc)
@@ -80,7 +80,7 @@
  *		return uc->upstr;
  *	}
  *
- *	void exit_upcase(void)
+ *	static void exit_upcase(void)
  *	{
  *		talloc_free(cache);
  *		printf("Cache hits: %u\n", cache_hits);

ccan/tdb/_info

@@ -14,10 +14,10 @@
  *	#include <err.h>
  *	#include <stdio.h>
  *	
- *	static void usage(void)
+ *	static void usage(const char *argv0)
  *	{
  *		errx(1, "Usage: %s fetch <dbfile> <key>\n"
- *		     "OR %s store <dbfile> <key> <data>");
+ *		     "OR %s store <dbfile> <key> <data>", argv0, argv0);
  *	}
  *	
  *	int main(int argc, char *argv[])
@@ -26,7 +26,7 @@
  *		TDB_DATA key, value;
  *	
  *		if (argc < 4)
- *			usage();
+ *			usage(argv[0]);
  *	
  *		tdb = tdb_open(argv[2], 1024, TDB_DEFAULT, O_CREAT|O_RDWR,
  *				0600);
@@ -38,7 +38,7 @@
  *	
  *		if (streq(argv[1], "fetch")) {
  *			if (argc != 4)
- *				usage();
+ *				usage(argv[0]);
  *			value = tdb_fetch(tdb, key);
  *			if (!value.dptr)
  *				errx(1, "fetch %s: %s",
@@ -47,14 +47,14 @@
  *			free(value.dptr);
  *		} else if (streq(argv[1], "store")) {
  *			if (argc != 5)
- *				usage();
+ *				usage(argv[0]);
  *			value.dptr = (void *)argv[4];
  *			value.dsize = strlen(argv[4]);
  *			if (tdb_store(tdb, key, value, 0) != 0)
  *				errx(1, "store %s: %s",
  *				     argv[3], tdb_errorstr(tdb));
  *		} else
- *			usage();
+ *			usage(argv[0]);
  *	
  *		return 0;
  *	}

ccan/tdb2/_info

@@ -14,10 +14,10 @@
  *	#include <err.h>
  *	#include <stdio.h>
  *	
- *	static void usage(void)
+ *	static void usage(const char *argv0)
  *	{
  *		errx(1, "Usage: %s fetch <dbfile> <key>\n"
- *		     "OR %s store <dbfile> <key> <data>");
+ *		     "OR %s store <dbfile> <key> <data>", argv0, argv0);
  *	}
  *	
  *	int main(int argc, char *argv[])
@@ -26,10 +26,9 @@
  *		TDB_DATA key, value;
  *	
  *		if (argc < 4)
- *			usage();
+ *			usage(argv[0]);
  *	
- *		tdb = tdb_open(argv[2], 1024, TDB_DEFAULT, O_CREAT|O_RDWR,
- *				0600);
+ *		tdb = tdb_open(argv[2], TDB_DEFAULT, O_CREAT|O_RDWR,0600, NULL);
  *		if (!tdb)
  *			err(1, "Opening %s", argv[2]);
  *	
@@ -38,7 +37,7 @@
  *	
  *		if (streq(argv[1], "fetch")) {
  *			if (argc != 4)
- *				usage();
+ *				usage(argv[0]);
  *			value = tdb_fetch(tdb, key);
  *			if (!value.dptr)
  *				errx(1, "fetch %s: %s",
@@ -47,14 +46,14 @@
  *			free(value.dptr);
  *		} else if (streq(argv[1], "store")) {
  *			if (argc != 5)
- *				usage();
+ *				usage(argv[0]);
  *			value.dptr = (void *)argv[4];
  *			value.dsize = strlen(argv[4]);
  *			if (tdb_store(tdb, key, value, 0) != 0)
  *				errx(1, "store %s: %s",
  *				     argv[3], tdb_errorstr(tdb));
  *		} else
- *			usage();
+ *			usage(argv[0]);
  *	
  *		return 0;
  *	}

ccan/typesafe_cb/_info

@@ -87,7 +87,7 @@
  *
  *	// Define several silly callbacks.  Note they don't use void *!
  *	#define DEF_CALLBACK(name, op)			\
- *		static int name(int val, const int *arg)\
+ *		static int name(int val, int *arg)	\
  *		{					\
  *			printf("%s", #op);		\
  *			return val op *arg;		\