使用boost interval_map

问题描述

试图跟随interval_map的 boost_party 比如我做了这个例子code：

Trying to follow the boost_party example of interval_map I made this example code:

#include "boost/icl/interval.hpp"
#include "boost/icl/interval_map.hpp"
#include <set>
using namespace std;

typedef std::set<string> ids;

int main(int argc, char* argv[])
{
    ids ids1;   
    ids1.insert("T1");
    ids ids2;
    ids2.insert("T2");
    boost::icl::interval_map<boost::icl::closed_interval<int>, ids> mymap;
    boost::icl::closed_interval<int> i1 = boost::icl::closed_interval<int>(2, 7);
    boost::icl::closed_interval<int> i2 = boost::icl::closed_interval<int>(3, 8);
    mymap += make_pair(i1, ids1);
    mymap += make_pair(i2, ids2);
    return 0;
}

但这种获取的这个编译错误：

But this get's this compilation error:

error: no match for ‘operator+=’ (operand types are ‘boost::icl::interval_map<boost::icl::closed_interval<int>, std::set<std::basic_string<char> > >’ and ‘std::pair<boost::icl::closed_interval<int>, std::set<std::basic_string<char> > >’)
  mymap += make_pair(i1, ids1);

任何想法有什么不对？

Any idea what's wrong?

推荐答案

应该最有可能是 mymap.insert（make_pair（...））; 而不是 MyMap中+ = make_pair（...）; 。这对语法的std :: unordered_map 。

should most likely be mymap.insert(make_pair(...)); instead of mymap += make_pair(...);. That's the syntax for std::unordered_map.

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