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AnswerRe: How to calculate total line number of a text file Pin
David Crow11-Mar-09 3:17
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GeneralRe: How to calculate total line number of a text file Pin
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AnswerRe: How to calculate total line number of a text file Pin
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AnswerRe: How to calculate total line number of a text file Pin
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professionalStuart Dootson11-Mar-09 4:12 
QuestionSDI-appliction Pin
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QuestionMy second time to design a website... Pin
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QuestionUnordered Map Pin
CyanCrey11-Mar-09 1:52
CyanCrey11-Mar-09 1:52 
AnswerRe: Unordered Map Pin
Stuart Dootson11-Mar-09 3:52
professionalStuart Dootson11-Mar-09 3:52 
GeneralRe: Unordered Map Pin
CyanCrey11-Mar-09 8:19
CyanCrey11-Mar-09 8:19 
GeneralRe: Unordered Map Pin
Stuart Dootson11-Mar-09 8:32
professionalStuart Dootson11-Mar-09 8:32 
It won't hash the strings - you use hash_map for that (although in my experience, std::map has better performance).

But it will compare strings properly - I guess it'll use operator<?

BTW - this code worked fine on g++ 4.0.1 (using Boost's TR1 implementation) and on VS2008 (using its own TR1):

#include <string>
#include <iostream>
#include <unordered_map>

int _tmain(int argc, _TCHAR* argv[])
{
   std::tr1::unordered_map<std::string, int> a;
   a.insert(std::make_pair("Hello", 10));
   a.insert(std::make_pair("Goodbye", 20));

   std::cout << a.count("test") << std::endl;
   std::cout << a.count("Hello") << std::endl;

   return 0;
}


This does comparisons...

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

GeneralRe: Unordered Map Pin
CyanCrey12-Mar-09 12:47
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QuestionSorting algorithm Pin
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