Function DatumGetCString

src/include/postgres.h:566–566

#define PointerGetDatum(X) ((Datum) (X))

static inline char *DatumGetCString(Datum d) { return (char* ) DatumGetPointer(d); } 
static inline Datum CStringGetDatum(const char *p) { return PointerGetDatum(p); }

static inline Name DatumGetName(Datum d) { return (Name) DatumGetPointer(d); }