Re: Complex.h file
John Coppens jcoppens dot com> writes: > Tony Richardson evansville.edu> wrote: > > >_Complex double x = 7 + 8i; > > > > but it does not have built-in support for all of the complex functions > > that are declared in complex.h. I would assume the "problem" is > > more of newlib issue than a gcc one. > > That's good news - I couldn't find much info on the nuts and bolts of the > complex stuff in gcc-3.4.x (Is there some manual that is up-to-date? The > gcc manuals I found are from 2002 or older). The complex number stuff is documented in the gcc info pages. Look under "C Extensions" and then "Complex Numbers" > I just tried to change a few complex declarations to _Complex on the big > machine and they even seem compatible with the normal 'complex' > declarations. You might be able to save yourself some typing by using a typedef in a complex.h file that you create and thereby avoid having to modify the original source at all. Regards, Tony Richardson -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Complex.h file
On Sat, 19 Nov 2005 18:55:33 + (UTC)
Tony Richardson <[EMAIL PROTECTED]> wrote:
>_Complex double x = 7 + 8i;
>x += -3 - 4i;
>x *= 2 + 5i;
>x /= 3 - 4i;
>printf("(%f,%f)\n", creal(x), cimag(x));
>
> but it does not have built-in support for all of the complex functions
> that are declared in complex.h. I would assume the "problem" is
> more of newlib issue than a gcc one.
Hi Tony.
That's good news - I couldn't find much info on the nuts and bolts of the
complex stuff in gcc-3.4.x (Is there some manual that is up-to-date? The
gcc manuals I found are from 2002 or older).
I just tried to change a few complex declarations to _Complex on the big
machine and they even seem compatible with the normal 'complex'
declarations.
The program doesn't use sophisticated complex functions, so there's a
good possibility it'll work.
Anyway, I'll also explore the minGW way, as I would appreciate
stand-alone executables.
Thanks for the info.
John
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Re: Complex.h file
John Coppens jcoppens.com> writes:
> I'm tying to port a program of mine to cygwin, and have the following
> problem:
>
> complex.h is not found.
>
> The compiler complains about the missing complex.h and about the complex
> type in a file, even though I read gcc has complex C-99 support built-in
> since 3.4.1
Well gcc 3.4.4 has built-in support for complex types, i.e. the following works
(without including complex.h)
_Complex double x = 7 + 8i;
x += -3 - 4i;
x *= 2 + 5i;
x /= 3 - 4i;
printf("(%f,%f)\n", creal(x), cimag(x));
but it does not have built-in support for all of the complex functions
that are declared in complex.h. I would assume the "problem" is
more of newlib issue than a gcc one.
Tony Richardson
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Re: Complex.h file
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John Coppens wrote: [snip] > complex.h is not found. > > A search in the cygwin tree reveals: > > /usr/lib/i686-pc-mingw32/3.4.4/include/c++/backward/complex.h > /usr/lib/i686-pc-cygwin/3.4.4/include/c++/backward/complex.h > /usr/include/mingw/complex.h Easy way out: add the -mno-cygwin parameter to CFLAGS. That means "use mingw headers and libraries" to produce a windows only executable (no cygwin dll dependencies); this will work if the package you are compiling doesn't depend on libraries not supplied by mingw. > But, as I use gcc, and normal c (not c++), I suspect none of these are > seen. On my Linux machine, all compiles well (same gcc version). > > The compiler complains about the missing complex.h and about the complex > type in a file, even though I read gcc has complex C-99 support built-in > since 3.4.1 [snip] I'm not sure about the standard, but complex is defined in libstdc++ wich is c++ not c, and I don't have it in gcc 3.4.4 only on 4.0.2 (not distributed with Cygwin yet). HTH - -- René Berber -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2 (Cygwin) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iEYEARECAAYFAkN/ZEkACgkQL3NNweKTRgzTxgCfey5vL7UQT+P4UbbWDZvOXbvQ goQAoP4+jnaFomRuiqyWvPfpm0HXs6Ox =u521 -END PGP SIGNATURE- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Complex.h file
Hi guys & gals. I'm tying to port a program of mine to cygwin, and have the following problem: complex.h is not found. A search in the cygwin tree reveals: /usr/lib/i686-pc-mingw32/3.4.4/include/c++/backward/complex.h /usr/lib/i686-pc-cygwin/3.4.4/include/c++/backward/complex.h /usr/include/mingw/complex.h But, as I use gcc, and normal c (not c++), I suspect none of these are seen. On my Linux machine, all compiles well (same gcc version). The compiler complains about the missing complex.h and about the complex type in a file, even though I read gcc has complex C-99 support built-in since 3.4.1 Can someone help here? Thanks, John PS: The program I'm trying to compile is linsmith, available at http://sf.net/projects/linsmith -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
