CPP
cpp
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#include <iostream>
#include <cstdlib>
#define P(x) std::cout << x << endl;
using namespace std;
void ptr_func(int*);
void hi(int num_times){
for (int i=0; i<num_times; i++){
P("hi");
}
}
int main() {
int *ptr;
P("Allocating 10 ints of memory");
ptr = (int*) malloc(10*sizeof(ptr));
P("Reallocating it to 100 ints of memory");
ptr = (int*) realloc(ptr, 100*sizeof(ptr));
P("Setting it free");
free(ptr);
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