File Creation in share mode in VC++

neeraja31

Hi All, I need to remove duplicate lines in a text file, need to use that output file for other functions. Can any one suggest me how to remove the duplicate lines in a text file

Lost User

neeraja31 wrote:

Can any one suggest me how to remove the duplicate lines in a text file

Read the file, sort the contents, discard the duplicates and write the remaining lines to a new file. Or did I misunderstand the question?

neeraja31

Hi Thanks for yuor reply. How can i sort the text file using C++ code. If you have any piece of code please expain me with that

sunlin7

read text lines from file and save them to vector(or other container), then sort the vector and unique it.

neeraja31

Please give me te\he piece of code to read from vector, confirm me whether that will work on win32 VC++ project

Lost User

neeraja31 wrote:

How can i sort the text file using C++ code.

The qsort() function provides a simple sort mechanism, or you could use the STL vector<> type. See the MSDN documentation for complete details.

David Crow

neeraja31 wrote:

How can i sort the text file using C++ code.

How about std::sort()?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

David Crow

One example, assuming you are storing ints in the vector, looks like:

vector<int> nums;
for (vector<int>::iterator i = nums.begin(); i != nums.end(); i++)
cout << *i << endl;;

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons