On Wed, Jun 30, 2004 at 03:55:23AM -0400, Zhou Xinhui wrote: > hello, > I am trying to use complex number to do some matrix > operation, but I got some error message when I tried to > compile it with gcc. can someone know what the problem is . > > The following is the test code and the output of compiler > thanks a lot. Hello Zhou, you should compile C++ code with "g++", not with "gcc". This is the output when running "g++ temp.cpp": In file included from /var/tmp/gcc-3.4/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/backward/complex.h:31, from temp.cpp:3: /var/tmp/gcc-3.4/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated. This warning can be easily omitted if you do /* ---------------------------------------------------------------------- */ #include <cstdio> #include <complex> using std::complex; /* ---------------------------------------------------------------------- */ Be aware, that there's also complex number support in C99 header "complex.h" - which is a completely different header than C++'s "complex". Cheers. -- Claudio
