包含值地址的字符串 - >指向該值的指針

Question

所以我有一個字符串保存到另一個變量的地址，我想將該地址轉換爲實際指針，以便我可以編輯該地址的值。

所以，我基本上想做與此相反的事情。

int value = 10; 
auto address = reinterpret_cast<uintptr_t>(&value); 
std::stringstream ss; 
ss << std::hex << address; 
std::string strAddr (ss.str()); 
std::cout << "Address of value = " << strAddr << std::endl; // just append "0x" to start if you want to format it like hex 

Answer 1

相反的過程：

const std::string address_as_text = "0x12345678"; 
unsigned int address_as_number = 0U; 
std::istringstream addr_stream(address_as_text); 
addr_stream >> hex >> address_as_number; 
int * pointer_to_int = (int *) address_as_number; 
int value_from_memory = *pointer_to_int;