短语“构造函数”的含义没有名称“在C ++标准 [英] Meaning of phrase "constructors do not have names" in the C++ Standard

问题描述

在C ++标准中尝试理解短语构造函数没有名称时，似乎我在clang中发现了一个错误。

While trying to understand the phrase "constructors do not have names" in the C++ Standard, it seems like I found an error in clang. Could someone confirm this?

VS2015 code> gcc 拒绝此代码，我认为 是正确的。至少，这是我从N4140中的§12.1[class.ctor] / 2的印象：

VS2015 and gcc rejects this code, and I think they it are is correct. At least, this is the impression I get from §12.1[class.ctor]/2 in N4140:

#include <iostream>
class A {
public:
    A() { std::cout << "A()" << '\n'; }
};

int main()
{
  A::A();
}

§12.1[class.ctor] / 2 在N4140中：

构造函数用于初始化其类类型的对象。因为
构造函数没有名称，它们在名称
查找期间永远不会找到; ...

A constructor is used to initialize objects of its class type. Because constructors do not have names, they are never found during name lookup; ...

使用表达式 A :: A（）; ，clang通过名称查找找到构造函数，当它应该找到类型名称 A 。请参见实例。

With the expression A::A(); above, clang finds the constructor by name lookup, when it should find the type name A instead. See live example.

推荐答案

您的直觉是正确的。这是一个已知的ang错 13403 ，状态为 NEW 。

Your intuition is correct. This is a known Clang bug 13403 with status NEW.

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