问题描述
有人可以给我提示此错误的提示：
Can someone give me please a hint for this error:
no viable conversion from 'std::shared_ptr<Foo>' to 'std::__1::shared_ptr<Foo> *'
QCache看起来像这样：
The QCache looks like this:
QCache<int, std::shared_ptr<Foo>> cache;
我试着插入这样的元素：
And I try to insert the element like this:
std::shared_ptr<Foo> foo; cache.insert(23, foo);
推荐答案
$ b解决方案
刚刚看了QCache API，由于我的猜测是正确的，我将它作为一个答案（希望upvotes！）。
Just looked into QCache API, and since my guess is correct, I will post it as an answer (with hopes for upvotes!).
的签名是 bool QCache :: insert（const Key& key，T * object，int cost = 1） code>。此外，API提到了QCache从那一刻起拥有指针的事实，所以你根本不需要shared_ptr。相反，你应该插入由QCache管理的原始指针。
Signature for insert() is bool QCache::insert(const Key & key, T * object, int cost = 1). Moreover, API mentions the fact that QCache owns the pointer from that moment on, so you do not need shared_ptr at all. Instead, you should insert raw pointer which will be managed by QCache.
这篇关于QCache和std :: shared_ptr的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！