Some examples in <boost>/libs/assign/doc/index.html file print "Assertion failed" message or cannot be compiled. <boost>/libs/assign/doc/index.html#operator+= vector<int> values; values += 1,2,3,4,5,6,7,8,9; // insert values at the end of the container BOOST_ASSERT( values.size() == 9 ); BOOST_ASSERT( values[0] == 1 ); BOOST_ASSERT( values[9] == 9 );// <---must be "values[8]" <boost>/libs/assign/doc/index.html#operator() map<string,int> months; insert( months ) ( "january", 31 )( "february", 28 ) ( "march", 31 )( "april", 30 ) ( "may", 31 )( "june", 30 ) ( "july", 31 )( "august", 31 ) ( "september", 30 )( "october", 31 ) ( "november", 30 )( "december", 31 ); BOOST_ASSERT( m.size() == 12 ); //<---change "m" to "months" BOOST_ASSERT( m["january"] == 31 ); //<---same here after words "If operator()() is too cumbersome to use with eg. push_front()we can also say": deque<int> di; push_front( di ) = 1,2,3,4,5,6,7,8,9; BOOST_ASSERT( di.size() == 9 ); BOOST_ASSERT( di[8] == 9 );//<-- must be di[8]==1 or di[0]==9 because of push_front <boost>/libs/assign/doc/index.html#list_of: const stack<string> names = list_of( "Mr. Foo" )( "Mr. Bar")( "Mrs. FooBar" ).to_adapter(); const stack<string> names2 = (list_of( "Mr. Foo" ), "Mr. Bar", "Mrs. FooBar" ).to_adapter(); BOOST_ASSERT( names.size() == 3 ); BOOST_ASSERT( names[0] == "Mr. Foo" ); //<---can't use operator [] with stack BOOST_ASSERT( names[2] == "Mrs. FooBar" ); //<---same here example after words "A more general list can be constructed with repeat_fun()": template< class T > struct next { T seed; next( T seed ) : seed(seed) { } T operator()() const //<---remove const or declare "T seed" as mutable { return seed++; } };