id summary reporter owner description type status milestone component version severity resolution keywords cc 6880 Boost Polygon c++11 problem free66@… Lucanus Simonson "In transform_detail.hpp of boost polygon line 257 you write int this_array[3] = {horizontalDir.to_int(), verticalDir.to_int(), proximalDir.to_int()}; where horizontalDir is a direction_3d defined in isotropy.hpp and the to_int() function is defined in line 529 as inline unsigned int to_int(void) const { return val_; } returning an unsigned int. Using the uniform initialization with {} results in narrowing which is imho not allowed in c++11. At least the llvm clang 3.1 compiler complains. Possible fixes afaik to_int() could return int or array should be defined as unsigned int" Bugs closed To Be Determined polygon Boost 1.49.0 Problem fixed