[CMake] several questions about cmake
Mark Roden
mmroden at gmail.com
Fri Aug 27 12:32:36 EDT 2010
Sorry about breaking the back-thread, I only saw the response in the
cmake digest and not from a particular response.
I think that this code is suspicious anyway, for a number of reasons.
They claim out-of-the-box windows compatibility, but I'm getting all
sorts of other compilation errors that indicate that this code isn't
of the highest Windows quality. For instance, neglecting these two
defines:
# define ENAMETOOLONG WSAENAMETOOLONG
# define ENOTEMPTY WSAENOTEMPTY
and assuming that sys/signal.h exists across all platforms while not
making the same assumption about sys/types.h.
Looks like I'm gonna have to (re)learn sockets, at least enough to
polish this up to make it useful.
To paraphrase Homer J:
"Learning? That wasn't part of the deal!"
Ah well :)
Thanks for the help,
Mark
On Fri, Aug 27, 2010 at 9:31 AM, Jed Brown <jed at 59a2.org> wrote:
> Quoth Stroustrup (http://www2.research.att.com/~bs/bs_faq2.html#void-main):
>
> The definition
>
> void main() { /* ... */ }
>
> is not and never has been C++, nor has it even been C. See the ISO C++
> standard 3.6.1[2] or the ISO C standard 5.1.2.2.1. A conforming
> implementation accepts
>
> int main() { /* ... */ }
>
> and
>
> int main(int argc, char* argv[]) { /* ... */ }
>
> A conforming implementation may provide more versions of main(), but
> they must all have return type int. The int returned by main() is a way
> for a program to return a value to "the system" that invokes it. On
> systems that doesn't provide such a facility the return value is
> ignored, but that doesn't make "void main()" legal C++ or legal C. Even
> if your compiler accepts "void main()" avoid it, or risk being
> considered ignorant by C and C++ programmers.
>
>
> Mark, you may be correct that it's not the reason for the failure (I
> haven't read the back-thread, which you broke) but I would be very
> suspicious of code that is non-conforming.
>
> Jed
>
More information about the CMake
mailing list