Messages in this thread |  | | | Subject | Re: Compiling C++ kernel module + Makefile | | From | Zan Lynx <> | | Date | Tue, 20 Jan 2004 10:34:39 -0700 |
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On Tue, 2004-01-20 at 08:20, Richard B. Johnson wrote: > Nevertheless, I provide three programs, one written in > C, the other in C++ and the third in assembly. A tar.gz > file is attached for those interested. > > -rwxr-xr-x 1 root root 57800 Jan 20 10:16 hello+ > -rwxr-xr-x 1 root root 460 Jan 20 10:16 helloa > -rwxr-xr-x 1 root root 2948 Jan 20 10:16 helloc > > The code size, generated from assembly is 460 bytes. > The code size, generated from C is 2,948 bytes. > The code size, generated from C++ is 57,800 bytes. > > Clearly, C++ is not the optimum language for writing > a "Hello World" program.
I like C++ and hate to see it so unfairly maligned. Here's a much better example:
Makefile: helloc: hello.c gcc -Os -s -o helloc hello.c
hellocpp: hello.cpp g++ -Os -fno-rtti -fno-exceptions -s -o hellocpp hello.cpp
Both programs contain exactly the same code: one main() function using puts("Hello world!").
# ls -l -rwxrwxr-x 1 jbriggs jbriggs 2840 Jan 20 10:02 helloc -rwxrwxr-x 1 jbriggs jbriggs 2948 Jan 20 10:06 hellocpp
108 extra bytes is hardly the end of the world. -- Zan Lynx <zlynx@acm.org> [unhandled content-type:application/pgp-signature] |  |