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fixed connected_components compile error#58
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I use g++ 7.3.0 and Ubuntu 18.04.
I cloned graphchi-cpp and typed "make".
I saw the following error and fixed the error.
/usr/include/c++/7/bits/stl_pair.h:443:5: note: template argument deduction/substitution failed:
In file included from /usr/include/dirent.h:245:0,
from ./src/preprocessing/conversions.hpp:34,
from ./src/graphchi_basic_includes.hpp:54,
from example_apps/connectedcomponents.cpp:50:
./src/util/labelanalysis.hpp:169:17: note: ‘std::ofstream {aka std::basic_ofstream}’ is not derived from ‘const std::pair<_T1, _T2>’
if (resf == NULL) {
^
Makefile:31: recipe for target 'example_apps/connectedcomponents' failed
make: *** [example_apps/connectedcomponents] Error 1