Reading from a File Descriptor First, you can assign a file descriptor to an input file with this syntax: $ exec 3 where 3 is the file descriptor we have chosen to use and file is the name of the ...

File descriptors are simply integers, so yeah, C++ does support them (though not nessisarily as a class). To get the FD for a file, you have to open it first (duh).

Here 0, 1, and 2 are called file descriptors (FD). In the following section, we’ll look into file descriptors in detail. File Descriptors In Linux, everything is a file. Directories, regular files, ...

In that case, what's the established method to get the underlying file descriptor?<BR><BR>FWIW, I am trying to get the size of a file. Also, this is all in Windows.<BR><BR>Thanks ...

The number of file descriptors required exceeds the hard limit. Your system imposes other limits on file descriptors, such as a limit on stdio streams only using file descriptors below 256.

File descriptors below 3 are used for standard input, output, and error, the ones above 9 may be used by the shell internally. Although there is no explicit syntax for closing a file, re-using the ...

Closing File Descriptors In last week’s column, we looked at using file descriptors to read and write files. After associating a file descriptor with a file, you might want to close the file ...