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Available on Visual Studio 2017, Installer, and newer releases
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No diagnostic on invalid member initialization since MSVC 14.12
The following code compiles fine with VS 2017 Update 5 and 6 Preview 2. It doesn't compile with Update 4 and clang. /std:c++14/17/latest and /permissive- make no difference.
struct A {
A(int, int) {}
A() = delete; // makes no difference
};
struct B {
A a1{1, 1, 1};
A a2{};
A a3{1};
A a4{nullptr};
A a5{""};
A a6{0.0};
};
We appreciate you taking the time to report this problem. We are currently prioritizing problems that are impacting a broad set of our customers, so we may not be able to investigate this one immediately. We know this problem is important to you, so we will continue to monitor it.
Thank you for your feedback! We have fixed the problem in an upcoming release. Thank you for helping us build a better Visual Studio!
Hi Leo, why is this bug taking so long to be fixed? I use {} initialization everywhere, so I get caught by this bug almost every single day...
Same problem when A is a base class of B:
struct B : A {
B() : A{ 1, 2, 3 } {} // Why no Error ?!?
};
Hello, this was fixed in 15.7 Preview 2. Thanks for your patience.
The fix for this is now in our latest Visual Studio Preview release. If you'd like to try out the fix, you can access the preview build here: https://www.visualstudio.com/vs/preview
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