Hi, I originally learned using ansi c, but now that I am using c++ alot of that original c functionality is included in namespace std. Besides grep'ing sources, does any one know of a list of everything in namespace std?? or how to generate one programatically??

The C functions that are available in C++ are defined in the C++ standard. Looking at my version there are 102 standard functions (in 18 header files) The standard states that the header file will place the contents in the std namespace but there will be a copy of each header file that start with the letter c, for each of these the contents will be global (that is a using namespace std is inserted). Hence stdlib.h will have the functions in the std namespace whilst cstdlib.h will be global.

Just an aside, if you are using a lot of C functions then maybe you're not using C++ properly.

For a more friendly view of its contents, check out SGI. It outlines quite a few additional concepts that aren't specifically defined in code, such as what the different types of iterators and containers need to provide.

Some compilers place C functions in std:: when included in C++, others don't, and others have a mix. I would count on them not being in std:: unless you get a compiler error, in which case you can using std:: locally in a function/scope. Some of the C headers have C++ names (like <cstdlib> for <stdlib.h>, and others don't (I don't recall all of them.)
ta0kira