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I'm using C++ on my Linux machine (Redhat 9.0) and I have a question. I was wondering if someone could tell me the main differences between using gcc and g++ as my compiler. The reason I'm curious about the differences is because when I issue gcc from the command line, the link step fails due to unresolved library references.
As a test program, I coded up the standard "Hello world" program in C++:
After looking at this a little more, I think the main difference is what gcc passes to the assembly/linkage steps compared to what g++ passes to these steps.
Running each compiler from the command line in verbose mode showed the following.
g++ by default was passing link parms: -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc
gcc by default was passing link parms: -lgcc -lgcc_eh -lc -lgcc -lgcc_eh
Simply adding -lstdc++ to the parm list when invoking gcc (gcc -lstdc++ hello.cpp) results in the expected a.out. Hopefully, I'll run into a more intersting/challenging problem to post in the future. : )