哪一个Clang警告等效于GCC中的Wzero-as-null-pointer-constant? [英] Which Clang warning is equivalent to Wzero-as-null-pointer-constant from GCC?

问题描述

我们的项目使用C ++ 11/14，我们想使用 nullptr 代替带有指针的 0 或 NULL ，即使在允许 0 (作为整数文字).

Our project uses C++11/14, and we want to use nullptr instead of 0 or NULL with pointers, even when 0 (as an integer literal) is allowed.

我有以下代码:

int main()
{
    int *ptr1 = nullptr; // #1
    int *ptr2 = 0;       // #2
}

如果我使用GCC(5.3.0)和标志 -Wzero-as-null-pointer-constant 进行编译，则会在#2 中进行警告，但是我可以在Clang中找不到类似的标志.如果我使用Clang(3.7.1)和标志 -Weverything 编译代码，则不会收到有关#2 的任何警告.

If I compile with GCC (5.3.0) and the flag -Wzero-as-null-pointer-constant it warnings in #2, but I can't find a similar flag in Clang. If I compile the code with Clang (3.7.1) and the flag -Weverything, I don't get any warning about #2.

那么，在Clang中有没有办法得到类似的警告?

So, is there any way to get a similar warning for this in Clang?

推荐答案

Clang不支持此类警告(即，在其中没有 -Wzero-as-null-pointer-constant 等效项)铛).如果添加 -Weverything 选项(请注意仅在测试时这样做)，即可启用所有Clang的警告.

Clang doesn't support these kind of warnings (i.e., there's no -Wzero-as-null-pointer-constant equivalent in Clang). You can see it your self if you add -Weverything option (mind do it only for testing), which enables all Clang's warnings.

实时演示

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