Hi all<P>I'm writing a library in C++ and I would like to use namespaces, as it is suggested. But I'm having some problems.<P>First, I've created all my header and source files without any namespace.

Namespaces: They are used to group related variables, functions, or classes, preventing naming conflicts. They allow you to use the same name in different parts of your program without any issues.

When I try to compile some of my programs with classes that make use of the C++ standard library I am getting this error:'std' : does not exist or is not a namespaceHere's some sample code that's ...