dlsymvoid

dlsymvoid is not a standard function in the POSIX dynamic linking interfaces. In common practice, the standard symbol resolver is dlsym, declared in dlfcn.h, which returns a pointer to a symbol loaded from a dynamic library via dlopen. Because dlsym itself returns a void* pointer, some codebases or projects may use the name dlsymvoid as a wrapper or alias to emphasize returning a non-typed pointer, or as a locally defined helper that wraps dlsym and performs a cast. However, dlsymvoid is not part of the official API and its behavior depends on the specific project.

In typical usage, a dynamic library is loaded with dlopen, and dlsym is used to obtain the address of a symbol within that library. The returned void* must be cast to the appropriate function or data pointer type before use. For example, a function pointer can be defined and assigned from the symbol address obtained by dlsym. Proper error handling is essential: after calling dlopen or dlsym, one should check for errors with dlerror, which returns a human-readable string describing the issue if any symbol could not be resolved.

Wrapper or alias variants such as dlsymvoid, if present, generally follow the same underlying mechanism as dlsym but add project-specific behavior, such as automatic casting or stricter type handling. Users should consult the specific codebase documentation to understand any nonstandard behavior.

Cross-platform note: dlsym and dlopen are part of POSIX. On Windows, equivalent functionality is provided by LoadLibrary and GetProcAddress, which have different usage and error reporting. See also dlfcn.h, dlopen, dlerror, and GetProcAddress.