(C++) std

std stands for standard. It is the namespace most common used.

For example (the Hello World Program):

include <iostream>


int main()
{
  std::cout << "Hello world" << std::endl;
  return 0;
}

The function cout, found in the header file iostream is in namespace std.

All classes in namespace std can be found in the std:: glossary.

Avoid using namespace std, as this will pollute the global namespace [1,2].

References

1) Bjarne Stroustrup. The C++ Programming Language (3rd edition). 1997. ISBN: 0-201-88954-4. Chapter C.14.15: 'Don't pollute the global namespace'
2) C++ FAQ Lite: http://www.parashift.com/c++-faq-lite/coding-standards.html#faq-27.5 : 27.5: Should I use using namespace std in my code? Probably not.

last edited (March 10, 2007) by bilderbikkel, Number of views: 7922, Current Rev: 17 (Diff)