要測(cè)試intptr
轉(zhuǎn)換的正確性,您需要編寫(xiě)一些測(cè)試用例來(lái)驗(yàn)證不同類(lèi)型的數(shù)據(jù)在轉(zhuǎn)換為intptr_t
后是否能夠正確地還原
#include<iostream>
#include <cstdint>
intptr_t
轉(zhuǎn)換回原始類(lèi)型:template<typename T>
T intptr_to_type(intptr_t ptr) {
return reinterpret_cast<T>(ptr);
}
int main() {
// 測(cè)試用例1:int
int a = 42;
intptr_t int_ptr = reinterpret_cast<intptr_t>(&a);
int* restored_int_ptr = intptr_to_type<int*>(int_ptr);
std::cout << "Test case 1 (int): " << ((*restored_int_ptr == a) ? "Passed" : "Failed")<< std::endl;
// 測(cè)試用例2:float
float b = 3.14f;
intptr_t float_ptr = reinterpret_cast<intptr_t>(&b);
float* restored_float_ptr = intptr_to_type<float*>(float_ptr);
std::cout << "Test case 2 (float): " << ((*restored_float_ptr == b) ? "Passed" : "Failed")<< std::endl;
// 測(cè)試用例3:自定義結(jié)構(gòu)體
struct TestStruct {
int x;
float y;
};
TestStruct c{10, 20.5f};
intptr_t struct_ptr = reinterpret_cast<intptr_t>(&c);
TestStruct* restored_struct_ptr = intptr_to_type<TestStruct*>(struct_ptr);
std::cout << "Test case 3 (struct): " << ((restored_struct_ptr->x == c.x && restored_struct_ptr->y == c.y) ? "Passed" : "Failed")<< std::endl;
return 0;
}
這些測(cè)試用例分別測(cè)試了int
、float
和自定義結(jié)構(gòu)體類(lèi)型的數(shù)據(jù)。通過(guò)比較轉(zhuǎn)換前后的值,可以驗(yàn)證intptr
轉(zhuǎn)換的正確性。如果所有測(cè)試用例都通過(guò),那么intptr
轉(zhuǎn)換應(yīng)該是正確的。