src/ucx/cx/common.h

changeset 582
82b60a8dd55c
parent 579
e10457d74fe1
child 621
956c03c25edd
equal deleted inserted replaced
581:4a049e416021 582:82b60a8dd55c
148 /** 148 /**
149 * The attributed function always returns freshly allocated memory. 149 * The attributed function always returns freshly allocated memory.
150 */ 150 */
151 #define cx_attr_malloc __attribute__((__malloc__)) 151 #define cx_attr_malloc __attribute__((__malloc__))
152 152
153 #ifndef __clang__ 153 #if !defined(__clang__) && __GNUC__ >= 11
154 /** 154 /**
155 * The pointer returned by the attributed function is supposed to be freed 155 * The pointer returned by the attributed function is supposed to be freed
156 * by @p freefunc. 156 * by @p freefunc.
157 * 157 *
158 * @param freefunc the function that shall be used to free the memory 158 * @param freefunc the function that shall be used to free the memory
238 * Takes one or two arguments: the index of the pointer and (optionally) the 238 * Takes one or two arguments: the index of the pointer and (optionally) the
239 * index of another argument specifying the maximum number of accessed bytes. 239 * index of another argument specifying the maximum number of accessed bytes.
240 */ 240 */
241 #define cx_attr_access_w(...) cx_attr_access(__write_only__, __VA_ARGS__) 241 #define cx_attr_access_w(...) cx_attr_access(__write_only__, __VA_ARGS__)
242 242
243 #if __STDC_VERSION__ >= 202300L
244
245 /** 243 /**
246 * Do not warn about unused variable. 244 * Do not warn about unused variable.
247 */ 245 */
248 #define cx_attr_unused [[maybe_unused]] 246 #define cx_attr_unused __attribute__((__unused__))
249 247
250 /** 248 /**
251 * Warn about discarded return value. 249 * Warn about discarded return value.
252 */ 250 */
253 #define cx_attr_nodiscard [[nodiscard]]
254
255 #else // no C23
256
257 /**
258 * Do not warn about unused variable.
259 */
260 #define cx_attr_unused __attribute__((__unused__))
261
262 /**
263 * Warn about discarded return value.
264 */
265 #define cx_attr_nodiscard __attribute__((__warn_unused_result__)) 251 #define cx_attr_nodiscard __attribute__((__warn_unused_result__))
266
267 #endif // __STDC_VERSION__
268 252
269 253
270 // --------------------------------------------------------------------------- 254 // ---------------------------------------------------------------------------
271 // MSVC specifics 255 // MSVC specifics
272 // --------------------------------------------------------------------------- 256 // ---------------------------------------------------------------------------

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