Mail Archives: djgpp/1998/11/26/17:00:26
Dear friends,
just another error.
i have tried to compile another simple program that i have found on
Nelson's STL book.
//
// LIST0604.CPP
//
// This example program is used in Chapter 6 to
// perform some *extremely* crude benchmarks on classes
// vector<T>, deque<T>, list<T>. This routine just inserts
// a load of doubles into a container, then checks to see
// how long the entire operation took.
//
//
//
// Borland 4.x workarounds
//
#define __MINMAX_DEFINED
#include <deque.h>
#include <vector.h>
#include <list.h>
#include <iostream.h>
#include <iomanip.h>
#include <stdlib.h>
#include <time.h>
//
// This template function performs the actual test.
// The insertion point is determined by iterator j.
// I fiddle with j to ensure that all insertions are
// done in the very middle of the container.
//
template<class T>
void test( T& a )
{
time_t t1 = time( 0 );
T::iterator j = a.begin();
for ( int i = 0 ; i < 8000 ; i++ ) {
if ( ( i % 256 ) == 0 )
cout << '.';
j = a.insert( j, i );
if ( i % 2 )
j++;
}
cout << "\n";
cout << "Size = " << a.size() << endl;
cout << "Elapsed time: "
<< time( 0 ) - t1
<< " seconds"
<< endl;
a.erase( a.begin(), a.end() );
}
//
// Main just sets up the containers, then calls
// the template function to test them out.
//
main()
{
cout << "Testing vector<T> ";
vector<double> *a = new vector<double>;
test( *a );
delete a;
cout << "Testing deque<T> ";
deque<double> *b = new deque<double>;
test( *b );
delete b;
cout << "Testing list<T> ";
list<double > *c = new list<double>;
test( *c );
delete c;
return 1;
}
But there's a problem because i getting an error on line (36) when i declare:
T::iterator j = a.begin();
DJGPP last version on w95 environment
TIA
>>mailed by ''~``
Stefano Del Furia ( o o )
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