Advanced File Operations in
C++
1. File: A data set stored on a computer, often on a disk drive.
2. ifstream: Data type for input files.
3. ofstream: Data type for output files.
4. fstream: Data type for both input and output files.
5. eof member function: Used for managing file processes effectively.
6. ios::in: Input mode. Data will be read from the file. If the file does not exist, it will not be
created, and the open function will fail.
7. ios::out: Output mode. Data will be written to the file. By default, the file's contents will be deleted if it
already exists.
8. ios::app: Append mode. If the file already exists, its contents are preserved and all output is written
to the end of the file.
9. ios::ate: If the file already exists, the program goes directly to the end of it. Output may be written
anywhere in the file.
10.ios::binary: Binary mode.When a file is opened in binary mode, data are written to or read from
it in pure binary format.
11.ios::trunc: If the file already exists, its contents will be deleted (truncated). This is the default
mode used by ios::out.
12.fstream infile: Opens 'input.txt' in input mode.
13.fstream outfile: Opens 'output.txt' in output mode.
14.showpoint: Used for output formatting with file stream objects.
15.setw(x): Used for output formatting with file stream objects.
16.showprecision(x): Used for output formatting with file stream objects.
17.fstream dFile: Declaration of a file stream variable.
18.close the active file: Step to close the opened file after processing.
19.fail member function: Used to detect file open error.
20.Process the file transfer: Step to read or write data to the file.
21.File Access Steps: Steps to access files: include fstream header, declare a file stream variable,
open file, process file transfer, close file.
22.Sample modes (Flags): Must specify mode on the open statement.
23.fstream: A file stream object used for reading and writing files.
24.dataFile.open: Opens a file in a specified mode, such as output mode with ios::out.
25.setprecision: Sets the number of decimal places for floating-point output.
26.ios::out: File open mode that allows writing to a file.
27.ios::in: File open mode that allows reading from a file.
28.openFileIn: A function that attempts to open a file and returns true if successful.
29.showContents: A function that reads and displays the contents of a file.
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C++
1. File: A data set stored on a computer, often on a disk drive.
2. ifstream: Data type for input files.
3. ofstream: Data type for output files.
4. fstream: Data type for both input and output files.
5. eof member function: Used for managing file processes effectively.
6. ios::in: Input mode. Data will be read from the file. If the file does not exist, it will not be
created, and the open function will fail.
7. ios::out: Output mode. Data will be written to the file. By default, the file's contents will be deleted if it
already exists.
8. ios::app: Append mode. If the file already exists, its contents are preserved and all output is written
to the end of the file.
9. ios::ate: If the file already exists, the program goes directly to the end of it. Output may be written
anywhere in the file.
10.ios::binary: Binary mode.When a file is opened in binary mode, data are written to or read from
it in pure binary format.
11.ios::trunc: If the file already exists, its contents will be deleted (truncated). This is the default
mode used by ios::out.
12.fstream infile: Opens 'input.txt' in input mode.
13.fstream outfile: Opens 'output.txt' in output mode.
14.showpoint: Used for output formatting with file stream objects.
15.setw(x): Used for output formatting with file stream objects.
16.showprecision(x): Used for output formatting with file stream objects.
17.fstream dFile: Declaration of a file stream variable.
18.close the active file: Step to close the opened file after processing.
19.fail member function: Used to detect file open error.
20.Process the file transfer: Step to read or write data to the file.
21.File Access Steps: Steps to access files: include fstream header, declare a file stream variable,
open file, process file transfer, close file.
22.Sample modes (Flags): Must specify mode on the open statement.
23.fstream: A file stream object used for reading and writing files.
24.dataFile.open: Opens a file in a specified mode, such as output mode with ios::out.
25.setprecision: Sets the number of decimal places for floating-point output.
26.ios::out: File open mode that allows writing to a file.
27.ios::in: File open mode that allows reading from a file.
28.openFileIn: A function that attempts to open a file and returns true if successful.
29.showContents: A function that reads and displays the contents of a file.
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