- int (*matchFunction_)(void *, void *, smx_synchro_t) = NULL;
- void (*cleanFunction_)(void *) = NULL;
- void (*copyDataFunction_)(smx_synchro_t, void*, size_t) = NULL;
+ int (*matchFunction_)(void *, void *, smx_synchro_t) = nullptr;
+ void (*cleanFunction_)(void *) = nullptr;
+ void (*copyDataFunction_)(smx_synchro_t, void*, size_t) = nullptr;