关于c++ primer 10.3.9 单词转换程序问题
囧蜀黍 2012-12-20 04:36:23 c++ primer 10.3.9 单词转换程序问题??怎样输入??怎样运行??为什么老是出现错误;abnormal program termination
源程序:
#pragma warning(disable : 4786)
#include <iostream>
#include <string>
#include <map>
#include <fstream>
#include <sstream>
using namespace std;
ifstream& open_file(ifstream&,const string&);
int main(int argc, char **argv)
{
map<string, string> trans_map;
string key, value;
if (argc!= 3)
throw runtime_error("wrong number of arguments");
ifstream map_file;
if (!open_file(map_file, argv[1]))
throw runtime_error("no transformation file");
while (map_file>>key>>value)
trans_map.insert(make_pair(key, value));
ifstream input;
if (!open_file(input, argv[2]))
throw runtime_error("no input file");
string line;
while (getline(input, line))
{
istringstream stream(line);
string word;
bool firstword = true;
while (stream >> word) {
map<string, string>::const_iterator map_it =trans_map.find(word);
if (map_it != trans_map.end())
word = map_it->second;
if (firstword)
firstword = false;
else
cout << " ";
cout << word;
}
cout << endl;
}
return 0;
}
ifstream& open_file(ifstream &in,const string &file)
{
in.close ();
in.clear ();
in.open (file.c_str ());
return in;
}