如何:宣告及使用內部指標和 Managed 陣列 (C++/CLI)
下列 C++/CLI 範例將示範如何宣告及使用指向陣列的內部指標。
重要
/clr
編譯器選項支援這項語言功能,/ZW
編譯器選項則不支援。
範例
程式碼
// interior_ptr_arrays.cpp
// compile with: /clr
#define SIZE 10
int main() {
// declare the array
array<int>^ arr = gcnew array<int>(SIZE);
// initialize the array
for (int i = 0 ; i < SIZE ; i++)
arr[i] = i + 1;
// create an interior pointer into the array
interior_ptr<int> ipi = &arr[0];
System::Console::WriteLine("1st element in arr holds: {0}", arr[0]);
System::Console::WriteLine("ipi points to memory address whose value is: {0}", *ipi);
ipi++;
System::Console::WriteLine("after incrementing ipi, it points to memory address whose value is: {0}", *ipi);
}
1st element in arr holds: 1
ipi points to memory address whose value is: 1
after incrementing ipi, it points to memory address whose value is: 2