What are the main differences between malloc provided by libc and std::malloc?

[Florian Weimer]

* 孙世龙 sunshilong via Libc-help:

> What are the main differences between malloc provided by libc and
> std::malloc?

Where do you get std:malloc?  If it's from GCC's libstdc++, there are
no differents.  It's the same function.