| 1 | // (‑●‑●)> released under the WTFPL v2 license, by Gregory Pakosz (@gpakosz) |
| 2 | // https://github.com/gpakosz/whereami |
| 3 | |
| 4 | #ifndef WHEREAMI_H |
| 5 | #define WHEREAMI_H |
| 6 | |
| 7 | #ifdef __cplusplus |
| 8 | extern "C" { |
| 9 | #endif |
| 10 | |
| 11 | #ifndef WAI_FUNCSPEC |
| 12 | #define WAI_FUNCSPEC |
| 13 | #endif |
| 14 | #ifndef WAI_PREFIX |
| 15 | #define WAI_PREFIX(function) wai_##function |
| 16 | #endif |
| 17 | |
| 18 | /** |
| 19 | * Returns the path to the current executable. |
| 20 | * |
| 21 | * Usage: |
| 22 | * - first call `int length = wai_getExecutablePath(NULL, 0, NULL);` to |
| 23 | * retrieve the length of the path |
| 24 | * - allocate the destination buffer with `path = (char*)malloc(length + 1);` |
| 25 | * - call `wai_getExecutablePath(path, length, NULL)` again to retrieve the |
| 26 | * path |
| 27 | * - add a terminal NUL character with `path[length] = '\0';` |
| 28 | * |
| 29 | * @param out destination buffer, optional |
| 30 | * @param capacity destination buffer capacity |
| 31 | * @param dirname_length optional recipient for the length of the dirname part |
| 32 | * of the path. |
| 33 | * |
| 34 | * @return the length of the executable path on success (without a terminal NUL |
| 35 | * character), otherwise `-1` |
| 36 | */ |
| 37 | WAI_FUNCSPEC |
| 38 | int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length); |
| 39 | |
| 40 | /** |
| 41 | * Returns the path to the current module |
| 42 | * |
| 43 | * Usage: |
| 44 | * - first call `int length = wai_getModulePath(NULL, 0, NULL);` to retrieve |
| 45 | * the length of the path |
| 46 | * - allocate the destination buffer with `path = (char*)malloc(length + 1);` |
| 47 | * - call `wai_getModulePath(path, length, NULL)` again to retrieve the path |
| 48 | * - add a terminal NUL character with `path[length] = '\0';` |
| 49 | * |
| 50 | * @param out destination buffer, optional |
| 51 | * @param capacity destination buffer capacity |
| 52 | * @param dirname_length optional recipient for the length of the dirname part |
| 53 | * of the path. |
| 54 | * |
| 55 | * @return the length of the module path on success (without a terminal NUL |
| 56 | * character), otherwise `-1` |
| 57 | */ |
| 58 | WAI_FUNCSPEC |
| 59 | int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length); |
| 60 | |
| 61 | #ifdef __cplusplus |
| 62 | } |
| 63 | #endif |
| 64 | |
| 65 | #endif // #ifndef WHEREAMI_H |