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gcc/clang: Mark macro-generated functions as possible unused
clang 3.4 introduced a new by-default warning about unused static functions, which we triggered heavily for the hashtable and map function generating macros. We can use __attribute__ ((unused)) (thanks nickm for the suggestion :-) ) to silence these warnings.
This commit is contained in:
Sebastian Hahn
Nick Mathewson
parent
d6e6eaba60
commit
3f567f529f
@ -162,6 +162,7 @@ extern INLINE double U64_TO_DBL(uint64_t x) {
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*
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* #define ATTR_NONNULL(x) __attribute__((nonnull x)) */
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#define ATTR_NONNULL(x)
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#define ATTR_UNUSED __attribute__ ((unused))
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/** Macro: Evaluates to <b>exp</b> and hints the compiler that the value
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* of <b>exp</b> will probably be true.
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@ -185,6 +186,7 @@ extern INLINE double U64_TO_DBL(uint64_t x) {
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#define ATTR_MALLOC
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#define ATTR_NORETURN
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#define ATTR_NONNULL(x)
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#define ATTR_UNUSED
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#define PREDICT_LIKELY(exp) (exp)
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#define PREDICT_UNLIKELY(exp) (exp)
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#endif
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@ -471,64 +471,74 @@ void* strmap_remove_lc(strmap_t *map, const char *key);
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#define DECLARE_TYPED_DIGESTMAP_FNS(prefix, maptype, valtype) \
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typedef struct maptype maptype; \
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typedef struct prefix##iter_t prefix##iter_t; \
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static INLINE maptype* prefix##new(void) \
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ATTR_UNUSED static INLINE maptype* \
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prefix##new(void) \
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{ \
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return (maptype*)digestmap_new(); \
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} \
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static INLINE digestmap_t* prefix##to_digestmap(maptype *map) \
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ATTR_UNUSED static INLINE digestmap_t* \
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prefix##to_digestmap(maptype *map) \
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{ \
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return (digestmap_t*)map; \
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} \
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static INLINE valtype* prefix##get(maptype *map, const char *key) \
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ATTR_UNUSED static INLINE valtype* \
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prefix##get(maptype *map, const char *key) \
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{ \
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return (valtype*)digestmap_get((digestmap_t*)map, key); \
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} \
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static INLINE valtype* prefix##set(maptype *map, const char *key, \
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valtype *val) \
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ATTR_UNUSED static INLINE valtype* \
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prefix##set(maptype *map, const char *key, valtype *val) \
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{ \
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return (valtype*)digestmap_set((digestmap_t*)map, key, val); \
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} \
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static INLINE valtype* prefix##remove(maptype *map, const char *key) \
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ATTR_UNUSED static INLINE valtype* \
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prefix##remove(maptype *map, const char *key) \
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{ \
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return (valtype*)digestmap_remove((digestmap_t*)map, key); \
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} \
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static INLINE void prefix##free(maptype *map, void (*free_val)(void*)) \
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ATTR_UNUSED static INLINE void \
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prefix##free(maptype *map, void (*free_val)(void*)) \
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{ \
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digestmap_free((digestmap_t*)map, free_val); \
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} \
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static INLINE int prefix##isempty(maptype *map) \
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ATTR_UNUSED static INLINE int \
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prefix##isempty(maptype *map) \
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{ \
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return digestmap_isempty((digestmap_t*)map); \
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} \
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static INLINE int prefix##size(maptype *map) \
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ATTR_UNUSED static INLINE int \
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prefix##size(maptype *map) \
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{ \
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return digestmap_size((digestmap_t*)map); \
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} \
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static INLINE prefix##iter_t *prefix##iter_init(maptype *map) \
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ATTR_UNUSED static INLINE \
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prefix##iter_t *prefix##iter_init(maptype *map) \
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{ \
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return (prefix##iter_t*) digestmap_iter_init((digestmap_t*)map); \
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} \
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static INLINE prefix##iter_t *prefix##iter_next(maptype *map, \
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prefix##iter_t *iter) \
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ATTR_UNUSED static INLINE \
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prefix##iter_t *prefix##iter_next(maptype *map, prefix##iter_t *iter) \
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{ \
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return (prefix##iter_t*) digestmap_iter_next( \
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(digestmap_t*)map, (digestmap_iter_t*)iter); \
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} \
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static INLINE prefix##iter_t *prefix##iter_next_rmv(maptype *map, \
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prefix##iter_t *iter) \
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ATTR_UNUSED static INLINE prefix##iter_t* \
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prefix##iter_next_rmv(maptype *map, prefix##iter_t *iter) \
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{ \
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return (prefix##iter_t*) digestmap_iter_next_rmv( \
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(digestmap_t*)map, (digestmap_iter_t*)iter); \
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} \
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static INLINE void prefix##iter_get(prefix##iter_t *iter, \
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const char **keyp, \
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valtype **valp) \
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ATTR_UNUSED static INLINE void \
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prefix##iter_get(prefix##iter_t *iter, \
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const char **keyp, \
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valtype **valp) \
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{ \
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void *v; \
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digestmap_iter_get((digestmap_iter_t*) iter, keyp, &v); \
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*valp = v; \
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} \
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static INLINE int prefix##iter_done(prefix##iter_t *iter) \
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ATTR_UNUSED static INLINE int \
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prefix##iter_done(prefix##iter_t *iter) \
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{ \
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return digestmap_iter_done((digestmap_iter_t*)iter); \
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}
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16
src/ext/ht.h
16
src/ext/ht.h
@ -168,7 +168,7 @@ ht_string_hash(const char *s)
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} \
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/* Insert the element 'elm' into the table 'head'. Do not call this \
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* function if the table might already contain a matching element. */ \
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static INLINE void \
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ATTR_UNUSED static INLINE void \
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name##_HT_INSERT(struct name *head, struct type *elm) \
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{ \
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struct type **p; \
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@ -183,7 +183,7 @@ ht_string_hash(const char *s)
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/* Insert the element 'elm' into the table 'head'. If there already \
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* a matching element in the table, replace that element and return \
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* it. */ \
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static INLINE struct type * \
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ATTR_UNUSED static INLINE struct type * \
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name##_HT_REPLACE(struct name *head, struct type *elm) \
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{ \
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struct type **p, *r; \
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@ -204,7 +204,7 @@ ht_string_hash(const char *s)
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} \
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/* Remove any element matching 'elm' from the table 'head'. If such \
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* an element is found, return it; otherwise return NULL. */ \
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static INLINE struct type * \
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ATTR_UNUSED static INLINE struct type * \
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name##_HT_REMOVE(struct name *head, struct type *elm) \
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{ \
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struct type **p, *r; \
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@ -222,11 +222,11 @@ ht_string_hash(const char *s)
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* using 'data' as its second argument. If the function returns \
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* nonzero, remove the most recently examined element before invoking \
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* the function again. */ \
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static INLINE void \
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ATTR_UNUSED static INLINE void \
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name##_HT_FOREACH_FN(struct name *head, \
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int (*fn)(struct type *, void *), \
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void *data) \
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{ \
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{ \
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unsigned idx; \
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struct type **p, **nextp, *next; \
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if (!head->hth_table) \
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@ -248,7 +248,7 @@ ht_string_hash(const char *s)
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/* Return a pointer to the first element in the table 'head', under \
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* an arbitrary order. This order is stable under remove operations, \
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* but not under others. If the table is empty, return NULL. */ \
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static INLINE struct type ** \
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ATTR_UNUSED static INLINE struct type ** \
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name##_HT_START(struct name *head) \
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{ \
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unsigned b = 0; \
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@ -264,7 +264,7 @@ ht_string_hash(const char *s)
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* NULL. If 'elm' is to be removed from the table, you must call \
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* this function for the next value before you remove it. \
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*/ \
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static INLINE struct type ** \
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ATTR_UNUSED static INLINE struct type ** \
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name##_HT_NEXT(struct name *head, struct type **elm) \
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{ \
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if ((*elm)->field.hte_next) { \
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@ -280,7 +280,7 @@ ht_string_hash(const char *s)
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return NULL; \
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} \
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} \
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static INLINE struct type ** \
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ATTR_UNUSED static INLINE struct type ** \
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name##_HT_NEXT_RMV(struct name *head, struct type **elm) \
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{ \
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unsigned h = HT_ELT_HASH_(*elm, field, hashfn); \
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