g++ versus gcc

["William Trenker" <wtrenker at hotmail dot com>]

(This has probably been asked a million times, but I did search the lists 
and came up with only sketchy information.)

Today I upgraded my Linux 2.4.19 system from gcc 2.95.3 to gcc 3.2.  I used 
this test program:

#include <iostream>
struct test {
   test(char* m) : msg(m) {};
   char* msg;
};
main()
{
   test* ptest = new test("Hello World");
   cout << ptest->msg << endl;
};

To build this I used the time-honored:  "gcc -o test test.cpp".

The build failed with the compiler complaining that "cout" and "endl" 
weren't declared, and the linker grumbled that it couldn't resolve 
references to "new", "delete", "cout", "basic_ostream" and other standard 
objects.

A search on the mailing lists, and with Google, pointed out that I have to 
explicitly decare namespace "std" -- gcc no longer defaults to "std".  
Further searching suggested that I should be using "g++", not "gcc".  Doing 
both these things resulted in my little test program building and running 
without error.

So now, it seems, we need to change all our makefiles, or the relevant 
environment variables, to use "g++" instead of "gcc" for building c++ files.

I would appreciate confirmation that the use of "g++" has officially 
replaced the use of "gcc" for c++ builds.

Thanks very much,
Bill Trenker
Kelowna BC Canada


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