------- Comment #5 from jsdeckerido at gmail dot com 2010-08-02 01:22 ------- how is this invalid?
it shouldn't matter whether map defines operator[](std::initializer_list<>),
only operator[](std::pair<int,int>) for std::map<std::pair<int,int>,int>.
{1, 2} should then be used to initialize that pair.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39901
