CODEWITHSUNDEEP
c++writetofile
user3316925
user3316925

Reputation: 23

C++ write text to file, how to multiple lines

How do you write multiple lines to a file? ... This is what I have.. Also, some of the lines include text like: #import <Foundation/Foundation.h> How would I go about doing this? The code below is what I have right now..

//Creates Config.h
        FILE * pFile;
        char *buffer = "//Empty Header File";
        char file [256];
        sprintf (file , "%s/Desktop/%s/Control.h",homeDir, game_name);
        pFile = fopen (file, "w+");
        fwrite (buffer , sizeof(char), sizeof(buffer), pFile);
        fclose (pFile);

Upvotes: 0

Views: 4147

Answers (3)

David G
David G

Reputation: 96845

Since this is C++, I suggest you utilize the standard IOStreams library and use the concrete file stream classes std::ifstream and std::ofstream for handling files. They implement RAII to handle the closing of the file, and use built in operators and the read()/write() member functions to perform formatted and unformatted I/O respectively. Moreover, they blend well together with the use of std::basic_string, the standard C++ string class.

With that said, if we implement this in C++ correctly, it should look like this:

std::string path     = "/Desktop/";
std::string filename = homeDir + path + game_name + "/Control.h";

std::ofstream file(filename, std::ios_base::app);

This handles opening the file, but as you say you wish to write multiple lines to a file. Well this is simple. Just use '\n' whenever you wish to put a newline:

file << buffer << '\n';

If you give us more information about your issue, I will be able to elaborate more in my answer. But until you do, the above is sufficient.

Upvotes: 1

Beta
Beta

Reputation: 99172

In C++ you would do it like this:

ofstream fout("someplace/Control.h");
fout << "a line of text" << endl;
fout << "another line of text" << endl;

I've left out some details like how to construct a filename and how to open a file in "append" mode, but you should try to tackle one problem at a time.

Upvotes: 0

Avt
Avt

Reputation: 17053

Change to

sprintf (file , "%s/Desktop/%s/Control.h\n",homeDir, game_name);

\n - is a new-line code.

Upvotes: 0

Related Questions