programming-examples/c++/Others/Concordance1.cpp - Concordance program using STL.cpp
2019-11-15 12:59:38 +01:00

69 lines
1.6 KiB
C++

Concordance1.cpp - Concordance program using STL
#pragma warning (disable: 4786)
#include <iostream>
#include <fstream>
#ifdef __GNUC__
#include <strstream.h>
#else
#ifdef __BORLANDC__
#include <strstrea.h>
#else
#include <sstream>
#endif
#endif
#include <map>
#include <string>
#include <vector>
using namespace std;
ostream & operator<<( ostream & out, const pair<string, vector<int> > & rhs )
{
out << rhs.first << ": " << '\t' << rhs.second[ 0 ];
for( int i = 1; i < rhs.second.size( ); i++ )
out << ", " << rhs.second[ i ];
return out;
}
int main( int argc, char *argv[ ] )
{
if( argc != 2 )
{
cerr << "Usage: " << argv[ 0 ] << " filename" << endl;
return 1;
}
ifstream inFile( argv[ 1 ] );
if( !inFile )
{
cerr << "Cannot open " << argv[ 1 ] << endl;
return 1;
}
string oneLine;
map<string, vector<int> > concordance;
// Read the words; add them to wordMap
for( int lineNum = 1; getline( inFile, oneLine ); lineNum++ )
{
#if defined( __GNUC__ ) || defined ( __BORLANDC__ )
istrstream st( oneLine.c_str( ), oneLine.length( ) );
#else
istringstream st( oneLine );
#endif
string word;
while( st >> word )
concordance[ word ].push_back( lineNum );
}
map<string, vector<int> >::iterator itr;
for( itr = concordance.begin( ); itr != concordance.end( ); itr++ )
cout << *itr << endl;
return 0;
}