programming in linux

On Thu, 16 Mar 2006 13:11:13 -0500, J. Clarke staggered into the Black Sun and said:

YMMV on this, but I found C a lot less complicated than its ++ variant. Objects are not a cure-all, and too many C++ tutorials cram objects down their readers' throats before making sure they know how to do stuff without them. Also, stewartbristol has programmed in C before, so he isn't flying blind.

stewartbristol, if you don't have a decent book on C (or C++, or whatever) then it'd be an excellent idea to get one.

fread(), fprintf(), fwrite(), fseek(), fclose(). The place where C falls down is that it doesn't have nice regular expression parsing functions ~= Perl, but there's always libpcre. (If your needs include parsing a lot of text data, you may find that it's easier and faster to write in Perl than in C, but you'll probably have to find that out for yourself.)

EXPN "read the ports"? If you meant "use ioperm() or iopl() to request access to a port range, then use inb() and outb() to read and write I-O ports on the x86", that can get tricky rather quickly from userspace. Especially if you have precise timing requirements. If you meant "read data from a device file", that's a bit easier, since then the kernel handles the I-O port reading for you. Of course, then you have to read up on all the ioctl()s you can do to your specific device file and use them properly.

The APL that had all the Greek letters in it? I hope they've modernized it a bit--that old thing was much more unfriendly than a modern C is. Oh well, HTH,

-- Matt GThere is no Darkness in Eternity-But only Light too dim for us to see Brainbench MVP for Linux Admin mail: TRAP + SPAN don't belong ----------------------------- penguins, is Tux." --MegaHAL