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generics.cpp
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generics.cpp
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#include <iostream>
#include <stdlib.h>
#include <string.h>
template<typename T>
std::string itsType(T value) {
if(sizeof(T) == sizeof(int))
return "int";
if(sizeof(T) == sizeof(char))
return "char";
if(sizeof(T) == sizeof(std::string))
return "string";
return "null";
}
template<typename T>
void logAndChange(T value) {
if(sizeof(value) == 4) {
std::cout << "This is a Number" << std::endl;
std::cout << value << std::endl;
return;
}
size_t length = strlen(value);
char* buffer = (char*)malloc(sizeof(char) * (length + 1));
strcpy(buffer, value);
buffer[0] = 'Y';
buffer[length] = 'w';
std::cout << buffer << std::endl;
free(buffer);
}
int main() {
int num = 10;
char initial = 'J';
std::string name = "Kyle";
std::cout << itsType(num) << std::endl;
std::cout << itsType(initial) << std::endl;
std::cout << itsType(name) << std::endl;
std::cout << itsType("Hello World") << std::endl;
logAndChange("Hello");
return 0;
}