Jim Henderson wrote:
> <shrug>  I'm just goin' by my observation.....if you've got a better 
> explanation, I'm all ears.

Dunno. Like I said, it may be the compiler version or something. Now, if 
you're talking Java, I could understand this, because the Java equivalent of 
#include looks at .class files to see if something needs to be recompiled. 
I.e., "make" is sort of built in to Java compilers.

darren@dog:~/test> gcc -v
Using built-in specs.
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --with-local-prefix=/usr/local 
--infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib64 
--libexecdir=/usr/lib64 
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada 
--enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.3 
--enable-ssp --disable-libssp --with-bugurl=http://bugs.opensuse.org/ 
--with-pkgversion='SUSE Linux' --disable-libgcj --with-slibdir=/lib64 
--with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new 
--disable-libstdcxx-pch --program-suffix=-4.3 
--enable-version-specific-runtime-libs --enable-linux-futex 
--without-system-libunwind --with-cpu=generic --build=x86_64-suse-linux
Thread model: posix
gcc version 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036] 
(SUSE Linux)
darren@dog:~/test> ls -l
total 28
-rw-r--r-- 1 darren users 67 2008-12-02 10:25 a.c
-rw-r--r-- 1 darren users 67 2008-12-02 10:26 b.c
-rw-r--r-- 1 darren users 22 2008-12-02 11:07 c.c
-rw-r--r-- 1 darren users 22 2008-12-02 10:25 d.c
darren@dog:~/test> cat a.c
#include "c.c"
int main() { write(1, "Hello " XYZ, 12); return 0;}
darren@dog:~/test> cat b.c
#include "c.c"
int main() { write(1, "Zing! " XYZ, 12); return 0;}
darren@dog:~/test> cat c.c
#define XYZ "World\n"
darren@dog:~/test> cat d.c
#define XYZ "xyzzy\n"
darren@dog:~/test> gcc a.c ; ls -li a.out ; ./a.out
1818787 -rwxr-xr-x 1 darren users 11120 2008-12-02 11:07 a.out
Hello World
darren@dog:~/test> gcc b.c ; ls -li a.out ; ./a.out
1818787 -rwxr-xr-x 1 darren users 11120 2008-12-02 11:07 a.out
Zing! World
darren@dog:~/test> cat d.c >c.c
darren@dog:~/test> gcc a.c ; ls -li a.out ; ./a.out
1818787 -rwxr-xr-x 1 darren users 11120 2008-12-02 11:08 a.out
Hello xyzzy
darren@dog:~/test> gcc b.c ; ls -li a.out ; ./a.out
1818787 -rwxr-xr-x 1 darren users 11120 2008-12-02 11:08 a.out
Zing! xyzzy
darren@dog:~/test> cat a.c >b.c
darren@dog:~/test> gcc b.c ; ls -li a.out ; ./a.out
1818787 -rwxr-xr-x 1 darren users 11120 2008-12-02 11:08 a.out
Hello xyzzy
darren@dog:~/test>

Nothing I did changed the inode number of a.out, in spite of getting 
different output every time I ran it.

-- 
   Darren New, San Diego CA, USA (PST)
   The NFL should go international. I'd pay to
   see the Detroit Lions vs the Roman Catholics.

Post a reply to this message