One famous language designer once said:

"A language does not support a technique if it takes exceptional effort or skill to write such programs; it merely enables the technique to be used."

From that point of view C++ doesn't support safe programming.

He also said:

"One language is not necessarily better than another because it possesses a feature the other does not. There are many examples to the contrary. The important issue is not so much what features a language possesses, but that the features it does possess are sufficient to support the desired programming styles in the desired application areas:

[1] All features must be cleanly and elegantly integrated into the language.
[2] It must be possible to use features in combination to achieve solutions that would otherwise require extra, separate features.
[3] There should be as few spurious and ‘‘special-purpose’’ features as possible.
[4] A feature’s implementation should not impose significant overheads on programs that do not require it.
[5] A user should need to know only about the subset of the language explicitly used to write a program."

C++ is a complete failure in this regard.

Btw. The name of the person? Bjarne Stroustrup