wada@ee.ibaraki.ac.jp (Wada Tatsuaki) wrote:

>
>Could someone explain the differeces when compiling the same code with same
>compiler but on different OS?
>
>I'd like to build a STL vector of the SymmetricMatrix class of the free
>newmat09 library. (http://nz.com/webnz/robert/nzc_nm09.html)
>
I suspect that WT is compiling with newmat's option to use simulated
exceptions. Under this option, the SymmetricMatrix class will define
its own "new" statement. I found this to conflict with container
classes with another compiler and I suspect it is what is happening
here.


Robert
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Could someone explain the differeces when compiling the same code with same
compiler but on different OS?

I'd like to build a STL vector of the SymmetricMatrix class of the free
newmat09 library. (http://nz.com/webnz/robert/nzc_nm09.html)


   #include "newmatap.h"                // need matrix applications
   #include "newmatio.h"                // need matrix output routines

   #ifdef use_namespace
   using namespace NEWMAT;              // access NEWMAT namespace
   #endif

   #include <iostream>
   #include <vector>

   int main(){

        vector< SymmetricMatrix > x (2);

        return 0;
   }

When I tried to compile the above program using egcs-1.1b on FreeBSD-2.2.7
with my PC-AT compatible machine, I got the following errors.

vecSymMat.cpp: 22 lines, 539 characters.
> g++ vecSymMat.cpp -I../newmat09 -L../newmat09 -lm -lnewmat
/usr/local/lib/gcc-lib/i386-unknown-freebsd/egcs-2.91.57/include/g++/
stl_constru
ct.h: In function `void construct<::NEWMAT::SymmetricMatrix, ::NEWMAT::Symmetric
Matrix>(class ::NEWMAT::SymmetricMatrix *, const class ::NEWMAT::SymmetricMatrix
 &)':
/usr/local/lib/gcc-lib/i386-unknown-freebsd/egcs-2.91.57/include/g++/stl_uniniti
alized.h:172:   instantiated from `__uninitialized_fill_n_aux<::NEWMAT::Symmetri
cMatrix *, unsigned int, ::NEWMAT::SymmetricMatrix>(::NEWMAT::SymmetricMatrix *,
 unsigned int, const ::NEWMAT::SymmetricMatrix &, __false_type)'
/usr/local/lib/gcc-lib/i386-unknown-freebsd/egcs-2.91.57/include/g++/stl_uniniti
alized.h:182:   instantiated from here
/usr/local/lib/gcc-lib/i386-unknown-freebsd/egcs-2.91.57/include/g++/stl_constru
ct.h:45: no matching function for call to `::NEWMAT::SymmetricMatrix::operator n
ew (unsigned int, ::NEWMAT::SymmetricMatrix *&)'
../newmat09/newmat.h:628: candidates are: ::NEWMAT::SymmetricMatrix::operator ne
w(size_t)


Could someone tell me how to get around it?
How can we constuct a vector of a userdefined class?
Should I write an allocator of SymmetricMatrix for constructing the vector?


The same program has compiled without any warnings using the same version
of egcs-1.1b on my Linux-alpha machine.

   >gcc -v
   Reading specs from /usr/local/lib/gcc-lib
         /alphaev56-unknown-linux-gnu/egcs-2.91.
   57/specs
   gcc version egcs-2.91.57 19980901 (egcs-1.1 release)

What is the difference between them?


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