How do I open a file in Builder

[davidmelvin]

I need to open a text file, read it, modify it, then save and close it. All of this will work in the backgound. That is, no user interface. The user will click on a button and start a sequence of operations including the above mentioned.

How do I open, read, write, save, close this file? Which header files will I need?

Thank you,
David

 

[bsisko]

Use fopen.
The syntax is like this.

FILE *fopen(const char *filename, const char *mode);

for mode use r to read a file, w to write a file.

 

[davidmelvin]

Thank you brisko,

Which header file should I use for fopen?

David

 

[bsisko]

Whoops !! Sorry.
The header file is stdio.h

 

[2ffat]

You could also use iostream. Just depends on which you prefer.


James P. Cottingham

http://www.ivcusa.com

All opinions are mine alone and do not necessarily reflect those of my employer.