Comment 2 for bug 290742

The asprintf() and vasprintf() prototypes are declared in <stdio.h> header file.
The <cstdio> should be the "adapted" version of the same file for C++ language.
Nonetheless those two prototypes are missing from the <cstdio> header file.
This forces the C++ programmers than need those functions to also #include <stdio.h>.
I would expect to see the C++ prototypes for asprintf() and vasprintf() also in <cstdio>.

em