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1 // (‑●‑●)> released under the WTFPL v2 license, by Gregory Pakosz (@gpakosz)

2 // https://github.com/gpakosz/whereami

4 #ifndef WHEREAMI_H

5 #define WHEREAMI_H

7 #ifdef __cplusplus

8 extern "C" {

9 #endif

11 #ifndef WAI_FUNCSPEC

12 #define WAI_FUNCSPEC

13 #endif

14 #ifndef WAI_PREFIX

15 #define WAI_PREFIX(function) wai_##function

16 #endif

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

 int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length);

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

 int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length);

61 #ifdef __cplusplus

62 }

63 #endif

65 #endif // #ifndef WHEREAMI_H