我知道C ++ / CLI等同于这个C#代码:
using (SomeClass x = new SomeClass(foo))
{
// ...
}
就是这样:
{
SomeClass x(foo);
// ...
}
但是,有类似的简洁和类似RAII的方式来表达这一点:
using (SomeClass x = SomeFunctionThatReturnsThat(foo))
{
// ...
}
或者:
SomeClass x = SomeFunctionThatReturnsThat(foo);
using (x)
{
// ...
}
?我最接近的工作示例是:
SomeClass^ x = SomeFunctionThatReturnsThat(foo);
try
{
// ...
}
finally
{
if (x != nullptr) { delete x; }
}
但这似乎不太好。
答案 0 :(得分:10)
msclr::auto_handle<>
是托管类型的智能指针:
#include <msclr/auto_handle.h>
{
msclr::auto_handle<SomeClass> x(SomeFunctionThatReturnsThat(foo));
// ...
}
// or
SomeClass^ x = SomeFunctionThatReturnsThat(foo);
{
msclr::auto_handle<SomeClass> y(x);
// ...
}