Std : : unique use of Linux I wrote in a procedure under Windows, which used a Std : : unique, but when translated 移植到linux mistakes, the following code Std : : set<double, Std : : greater<double>; "; Doseset, biasset; Std : : set<int, Std : : greater<int>; "; Procset; Std : : map<int, LMCCondition*>; : : iterator pos; For (conditions.begin poses = (); Poses> conditions.end (); Pos++)         { Doseset.insert (pos->;second->;m_dose); Biasset.insert (con->;m_bias); Procset.insert (con->;m_processid);                         } Std : : unique (doseset.begin (), doseset.end (), DoubleEqual ()); Std : : unique (biasset.begin (), biasset.end (), DoubleEqual ()); Error message as follows : /usr/local/lib/gcc/i686-pc-linux-gnu/3.4.4/. . /. . /. . /. . /include/c++/3.4.4/bits/stl_algo. In function h : : : unique `_ForwardIterator Std (_ForwardIterator, _ForwardIterator, _Binar YPredicate) [with _ForwardIterator = : : Std _Rb_tree_const_iterator<double>;, _BinaryPredi Cate = DoubleEqual] ': LMCCondParamRangePanel.cpp:317 instantiated from here : /usr/local/lib/gcc/i686-pc-linux-gnu/3.4.4/. . /. . /. . /. . /include/c++/3.4.4/bits/stl_algo. H:1401 : read-only location assignment of error : Thank you, the [ Closed window ]