Teach Yourself Borland C++ in 14 Days - portal

Totally Immersed: C++ Classes and Object-Oriented Programming
Basic File Input
Reading a text file in C++ is a fairly painless task. Listing 4.4 contains a program that reads
its own source file and displays each line as it reads it from disk. First, enter the program as
it appears in the listing (remember, don’t type the line numbers). Then save the project with
the name READFILE. If you don’t save the program with this name, the program will not run
properly. Compile and run the program. Since the program reads its own source file, the
output from the program will be the contents of Listing 4.4.
Listing 4.4. READFILE.CPP.
1: #include
2: #include
3: #include
4: #include
5: #include
6: #include
7: #pragma hdrstop
8:
9: int main(int argc, char **argv)
10: {
11: char buff[80];
12: ifstream infile;
13: infile.open(“readfile.cpp”);
14: if (!infile) return 0;
15: while (!infile.eof()) {
16: infile.getline(buff, sizeof(buff));
17: cout