How to find the residing directory of a OS X application package - programmatically

Question

I have a OS X application as a .app package which can reside in any arbitrary location in the filesystem. Is there a way to find the current path of the package programmatic

Answer 1

The bundle directory might be a problem with command line tools. So i use the following function which uses the mach-0 linker function to resolve shared libraries.

 static char* find_executable_filepath () noexcept 
 {
     char path[1];
     uint32_t size = 1;
     if (_NSGetExecutablePath(path, &size) == 0) return nullptr;
     char* res = (char*)malloc(size+1);
     if (_NSGetExecutablePath(res, &size) != 0) return nullptr;
     char* r = realpath(res, nullptr);
     free(res);
     return r; 
 }