Set the PATH to read files from disk.

[vRltwE]

Hi,

I am dealing with the proccess of read a file from disk. For that I use

iFile.open("/home/cristiano/matrix3.dat");

There is some particular way to specify the PATH?

I want to use some thing like

PATH = "/home/cristiano/";
iFile.open(matrix3.dat);

Thanks.

[PanGalactic]

Make PATH a string. Append your filename to the PATH. (path = PATH + filename;) Use that (path.c_str()) to open your file.

[helios]

That's not PATH. PATH is the environment variable that stores the directories the system uses to find executable files.

What PG said, but note that you can get the user's ~ with getpwuid().

[Duthomhas]

Use setenv()
http://linux.die.net/man/3/setenv

Keep in mind that may not work... It is better to just build your path like PanGalactic indicated.