🚀 go-pugleaf

I am hoping someone will tell me what I am doing wrong.  I have a simple
helloworld.cpp that I would like to compile.  I want to figure out what
options I need to select to compile.  There seem to be a few thousand
options to choose from, and I would like the generic basics.  ASCII/ISO C++
would be the ideal compile configuration for me.

When I compile my helloWorld.cpp file, 'gcc helloWorld.cpp I get an error
message reporting that cout is undeclared.  What am I doing wrong?  Any
assistance is appreciated.

In function 'int main(int, char**)'
Error: cout undeclared (first use in this function)
Error: (Each undeclared identifier is reported only once for each function
it appears in.)

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// helloWorld.cpp
#include <iostream>

int main(int argc, char *argv[])
{
  cout << "Hello, world!\n";
  return 1;
}
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