CoCoA » CoCoALib

There are missing includes in main.cpp and randomDataGenerators.cpp; you need to add:

#include <sys/typs.h>
#include <unistd.h>

Also in StatisticsStrategy.cpp:143 change the type mpz_class into mpq_class.

Could you write the changes in the documentation ExternalLibs-Frobby.txt?

OK, I have changed the documentation. Could you check to see if it makes sense?

John Abbott wrote:

OK, I have change the documentation. Could you check to see if it makes sense?

I believe I followed the instructions, but I still have problems like non recognizing
std::_Construct; std::_Destroy, std::__iterator_category....

Do you recognize this problem? (otherwise I investigate myself)

I do not recognise the error message you have posted.

Do you have to tell your compiler to use the C++03 standard rather than the C++11 standard?

BTW: I have just checked in a new file ExternalLibs-GMP.txt since there are some useful notes about compiling GMP (that's why I could not get CoCoALib to run on the netbook)

I've found this ;-)
[[https://github.com/Macaulay2/M2/issues/66]]

I copy here the reply from Bjarke Roune ===============
As I recall from that time, old GCC had hash_map but new GCC did not - they removed it! I wanted the code to compile on both the new and old gcc so I copied the file. At this point it might be reasonable to drop support for that older GCC, in which case I believe hash_map could just be replaced with std::unordered_map from the C++11 standard library, which at this point should be available in most compilers. I vaguely remember that there might have been some #ifdef'ing to do different things on different compilers here, so the fix might be to just change those #ifdefs. This is just what I remember, but I can look further into it if that isn't enough information. ===============

Can you tell your compiler (clang/llvm) to use the old standard? You will have to look in the documentation to see how (but it might simply be --std=c++03).

I have got a "clean compile" here with g++ version 5.3.1 both with and without --std=c++11, though with the option set to specify C++11 there are lots of warnings about auto_ptr being deprecated.

John Abbott wrote:

Can you tell your compiler (clang/llvm) to use the old standard? You will have to look in the documentation to see how (but it might simply be --std=c++03).

I tried, but I get the same error:

src/hash_map/hashtable.h:79:14: error: no member named '_Construct' in namespace
      'std'
  using std::_Construct;
        ~~~~~^