how to cast to int c++ code example

Example: c++ casting

static_cast:
//does implicit conversions between types.
void* data;
pointer *pData = static_cast<pointer*>(data);

const_cast:
//this can be used to remove or add the const to a variable.
const char* characters;
const_cast<char*>(characters);

reinterpret_cast:
//this cast is dangerous since it turns one type directly into another.
struct S1 { int a; } s1;
int* p1 = reinterpret_cast<int*>(&s1);