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$Header$
This directory contains a set of "hello, world" programs to test how
C++ namespaces are handled for the STL vector class.
Each .cc file is a "hello, world\n" program using a particular set of
options for what header file to #include, what (if any) using declarations
or definitions to use, and whether or not to use an explicit std::
qualifier when referring to the vector class.
According to standard C++, #include <vector> puts names *only* in the
std:: namespace, so the vector-global.cc program should fail to compile.
All the other programs should be legal in standard C++.
what to what namespace how we call status
#include? are we using vector()? in
vector() in? standard
using? C++
vector_h-global.cc <vector.h> global -- vector() ok
vector_h-std:std-vector.cc <vector.h> std -- std::vector() ok
vector_h-std:using-std-vector.cc <vector.h> std std::vector; vector() ok
vector_h-std:using-namespace-std.cc <vector.h> std namespace std; vector() ok
vector-global.cc <vector> global -- vector() WRONG
vector-std:std-vector.cc <vector> std -- std::vector() ok
vector-std:using-std-vector.cc <vector> std std::vector; vector() ok
vector-std:using-namespace-std.cc <vector> std namespace std; vector() ok
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