You named your program with a .c and ran gcc on it. Both of those mean
C, which is a different language from C++.   A C++ compiler will
compile a C program, but not the other way around.

Rename your file to end in .cc, .c++, .cpp, or .cxx, your choice (or
capital .C if you have case sensitivity turned on), and run "g++"
instead of "gcc".


-- 
Mark J. Reed <markjr...@gmail.com>

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