--- Gio 30/9/10, Jan Chludzinski  ha scritto:

> After doing some web searches for
> <complex.h> and Cygwin, I found
> there doesn't seem to be any support unless I use: gcc
> -I/usr/include/mingw -lm tc.c  But I still end up with:
> 
> /cygdrive/c/DOCUME~1/JOHNC~1.ECS/LOCALS~1/Temp/ccAPGnIv.o:tc.c:(.text+0x3d):
> undefined reference to `_ccos'
> collect2: ld returned 1 exit status
> 
> I'm really not interested in working with MinGW either.
>  All the
> messages about <complex.h> and Cygwin are rather old
> (<2007) so I was
> hoping that 1.7 would remedy the problem.  Evidently not?
> 
> ---John
> 

John,
newlib (cygwin libc-like library) has not the complex type,
however on cygwin complex numbers are supported by 
the gcc/g++ compiler

/usr/lib/gcc/i686-pc-cygwin/4.3.4/include/c++/complex.h

what are exactly your needs ?

Marco







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