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Merging 2 Files

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Join Date: Oct 2009

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Reputation: niXman is an unknown quantity at this point

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niXman

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#11

26 Days Ago

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
int main() {
   std::string fn1("");
   std::string fn2("");
   std::string out("");
 
   merge(fn1, fn2, out);
 
   return 0;
}
int main() {
   std::string fn1("");
   std::string fn2("");
   std::string out("");

   merge(fn1, fn2, out);

   return 0;
}

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Join Date: Oct 2009

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niXman

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#12

26 Days Ago

This solution has one condition. Both the original file must be the same size, otherwise copying will occur until the reach the end of the smallest file.

PS
Since the function requires arguments of type "const std::string &", then it can pass arguments to the type "const char *". In this case, in the stack will be created temporary object of type "const std::string", which destructed when you exit the function body.

ex.:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
merge("file1.txt", "file2.txt", "outfile.txt");
merge("file1.txt", "file2.txt", "outfile.txt");

Last edited by niXman; 26 Days Ago at 3:52 am.

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VernonDozier VernonDozier is offline

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#13

24 Days Ago

If you can get it to work without a function, it's a matter of converting that code so that it's inside of a function. Post the code that works where it's all in main.