[mlpack-svn] [MLPACK] #269: gcc4.8 (c++11) compiling issue

[MLPACK Trac]

#269: gcc4.8 (c++11) compiling issue
-----------------------+----------------------------------------------------
 Reporter:  bianjiang  |        Owner:     
     Type:  wishlist   |       Status:  new
 Priority:  major      |    Milestone:     
Component:  mlpack     |     Keywords:     
 Blocking:             |   Blocked By:     
-----------------------+----------------------------------------------------
 Getting this error when trying to compile mlpack from trunk. I think it's
 because I am using gcc4.8. Well, my current project uses quite a bit c++11
 features... Are we considering moving mlpack towards c++11 or at least
 make the compiler happy???

 Thanks,

 [  1%] Building CXX object
 src/mlpack/CMakeFiles/mlpack.dir/core/dists/discrete_distribution.cpp.o
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.cpp:7:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.hpp:11:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core.hpp:155:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/log.hpp:12:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:179:
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream_impl.hpp:30:14:
 error: default arguments cannot be added to a function template that has
 already been declared
     >::type* = 0)
              ^ ~
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:123:8:
 note: previous template declaration is here
   void CallBaseLogic(const T& s,
        ^
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.cpp:7:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.hpp:11:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core.hpp:155:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/log.hpp:12:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:179:
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream_impl.hpp:40:14:
 error: default arguments cannot be added to a function template that has
 already been declared
     >::type* = 0,
              ^ ~
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:130:8:
 note: previous template declaration is here
   void CallBaseLogic(const T& s,
        ^
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.cpp:7:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.hpp:11:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core.hpp:155:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/log.hpp:12:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:179:
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream_impl.hpp:43:14:
 error: default arguments cannot be added to a function template that has
 already been declared
     >::type* = 0)
              ^ ~
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:130:8:
 note: previous template declaration is here
   void CallBaseLogic(const T& s,
        ^
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.cpp:7:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.hpp:11:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core.hpp:155:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/log.hpp:12:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:179:
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream_impl.hpp:53:14:
 error: default arguments cannot be added to a function template that has
 already been declared
     >::type* = 0,
              ^ ~
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:140:8:
 note: previous template declaration is here
   void CallBaseLogic(const T& s,
        ^
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.cpp:7:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/core/dists/discrete_distribution.hpp:11:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core.hpp:155:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/log.hpp:12:
 In file included from
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:179:
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream_impl.hpp:56:14:
 error: default arguments cannot be added to a function template that has
 already been declared
     >::type* = 0)
              ^ ~
 /Users/h0cked/Research/dev/mlpack/src/mlpack/../mlpack/core/util/prefixedoutstream.hpp:140:8:
 note: previous template declaration is here
   void CallBaseLogic(const T& s,
        ^
 5 errors generated.
 make[2]: ***
 [src/mlpack/CMakeFiles/mlpack.dir/core/dists/discrete_distribution.cpp.o]
 Error 1
 make[1]: *** [src/mlpack/CMakeFiles/mlpack.dir/all] Error 2
 make: *** [all] Error 2

-- 
Ticket URL: <http://trac.research.cc.gatech.edu/fastlab/ticket/269>
MLPACK <www.fast-lab.org>
MLPACK is an intuitive, fast, and scalable C++ machine learning library developed by the FASTLAB at Georgia Tech under Dr. Alex Gray.