comparison: src/cx/string.h
src/cx/string.h
- changeset 1050
- 3df63e95921a
- parent 1046
- fe2c842fce4b
equal
deleted
inserted
replaced
| 1049:415bf2ce6bab | 1050:3df63e95921a |
|---|---|
| 242 cxstring cx_strn( | 242 cxstring cx_strn( |
| 243 const char *cstring, | 243 const char *cstring, |
| 244 size_t length | 244 size_t length |
| 245 ); | 245 ); |
| 246 | 246 |
| 247 #ifdef __cplusplus | |
| 248 } // extern "C" | |
| 249 cx_attr_nodiscard | |
| 250 static inline cxstring cx_strcast(cxmutstr str) { | |
| 251 return cx_strn(str.ptr, str.length); | |
| 252 } | |
| 253 cx_attr_nodiscard | |
| 254 static inline cxstring cx_strcast(cxstring str) { | |
| 255 return str; | |
| 256 } | |
| 257 extern "C" { | |
| 258 #else | |
| 259 /** | |
| 260 * Internal function, do not use. | |
| 261 * @param str | |
| 262 * @return | |
| 263 * @see cx_strcast() | |
| 264 */ | |
| 265 cx_attr_nodiscard | |
| 266 static inline cxstring cx_strcast_m(cxmutstr str) { | |
| 267 return (cxstring) {str.ptr, str.length}; | |
| 268 } | |
| 269 /** | |
| 270 * Internal function, do not use. | |
| 271 * @param str | |
| 272 * @return | |
| 273 * @see cx_strcast() | |
| 274 */ | |
| 275 cx_attr_nodiscard | |
| 276 static inline cxstring cx_strcast_c(cxstring str) { | |
| 277 return str; | |
| 278 } | |
| 279 | |
| 247 /** | 280 /** |
| 248 * Casts a mutable string to an immutable string. | 281 * Casts a mutable string to an immutable string. |
| 249 * | 282 * |
| 250 * \note This is not seriously a cast. Instead you get a copy | 283 * Does nothing for already immutable strings. |
| 284 * | |
| 285 * \note This is not seriously a cast. Instead, you get a copy | |
| 251 * of the struct with the desired pointer type. Both structs still | 286 * of the struct with the desired pointer type. Both structs still |
| 252 * point to the same location, though! | 287 * point to the same location, though! |
| 253 * | 288 * |
| 254 * @param str the mutable string to cast | 289 * @param str the mutable string to cast |
| 255 * @return an immutable copy of the string pointer | 290 * @return an immutable copy of the string pointer |
| 256 */ | 291 */ |
| 257 cx_attr_nodiscard | 292 #define cx_strcast(str) _Generic((str), \ |
| 258 cxstring cx_strcast(cxmutstr str); | 293 cxmutstr: cx_strcast_m, \ |
| 294 cxstring: cx_strcast_c) \ | |
| 295 (str) | |
| 296 #endif | |
| 259 | 297 |
| 260 /** | 298 /** |
| 261 * Passes the pointer in this string to \c free(). | 299 * Passes the pointer in this string to \c free(). |
| 262 * | 300 * |
| 263 * The pointer in the struct is set to \c NULL and the length is set to zero. | 301 * The pointer in the struct is set to \c NULL and the length is set to zero. |
