Function dart_sys::Dart_SetVMFlags

pub unsafe extern "C" fn Dart_SetVMFlags(
    argc: c_int, 
    argv: *mut *const c_char
) -> *mut c_char

Sets command line flags. Should be called before Dart_Initialize.

\param argc The length of the arguments array. \param argv An array of arguments.

\return NULL if successful. Returns an error message otherwise. The caller is responsible for freeing the error message.