Hello World!

How about compiling a C programming right from the browser itself.
Here it is:

Best C/C++/Data Structure Programming books

C/C++ Programming Questions This blog is for C/C++ Programming

Here is my collection of some of the best Programming books.

No 1 has to be this:

Then comes the rest of them.
When it comes to data structure there is a book written in simple English, very easy to comprehend the basic fundamentals of computer science.

There are couple of C++ books. But I find this to be the best:


        C++
        How to Program by Deitel and Deitel


And here a list of best Linux programming books:
a) Linux Kernel

b) Linux Device Driver Programming

Enjoy, happy reading.

Regards,
Kongkon

Free Linux Machine with C compiler

Hello World!
Many of us wanted their own Linux machine to do some C programming or at least to get a feel of the Linux Operating System.

Here is a Linux machine which can be accessible over the internet free of cost only for you :-). 

Just type the following URL in the browser and here you are in your own Linux machine:


http://bellard.org/jslinux/

This is an amaizing work by Bellard. There is also a clipboard facility to copy/paste your work back and forth between your local system and the Linux machine.

Copy your file to the clipboard:

cat myfile > /dev/clipboard

Explore this machine, and I am sure you will have lots of fun. The best part is that there is a C Compiler to test your own C programs.
It's a tiny version of a C compiler called "tcc".


To have a deep dive into the booting process of this OS, look at the booting sequence:

Linux version 2.6.20 (bellard@voyager) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)) #2 Mon Aug 8 23:51:02 CEST 2011
BIOS-provided physical RAM map:
sanitize start
sanitize bail 0
 BIOS-e801: 0000000000000000 - 000000000009f000 (usable)
 BIOS-e801: 0000000000100000 - 0000000001000000 (usable)
16MB LOWMEM available.
Entering add_active_range(0, 0, 4096) 0 entries of 256 used
Zone PFN ranges:
  DMA             0 ->     4096
  Normal       4096 ->     4096
early_node_map[1] active PFN ranges
    0:        0 ->     4096
On node 0 totalpages: 4096
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 4064 pages, LIFO batch:0
  Normal zone: 0 pages used for memmap
DMI not present or invalid.
Allocating PCI resources starting at 10000000 (gap: 01000000:ff000000)
Detected 3.333 MHz processor.
Built 1 zonelists.  Total pages: 4064
Kernel command line: console=ttyS0 root=/dev/ram0 rw init=/sbin/init notsc=1
Initializing CPU#0
Disabling TSC...
PID hash table entries: 64 (order: 6, 256 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory: 11956k/16384k available (1265k kernel code, 4040k reserved, 324k data, 124k init, 0k highmem)
virtual kernel memory layout:
    fixmap  : 0xffffc000 - 0xfffff000   (  12 kB)
    vmalloc : 0xc1800000 - 0xffffa000   ( 999 MB)
    lowmem  : 0xc0000000 - 0xc1000000   (  16 MB)
      .init : 0xc0290000 - 0xc02af000   ( 124 kB)
      .data : 0xc023c503 - 0xc028d854   ( 324 kB)
      .text : 0xc0100000 - 0xc023c503   (1265 kB)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 20.22 BogoMIPS (lpj=101116)
Mount-cache hash table entries: 512
CPU: After generic identify, caps: 00000010 00000000 00000000 00000000 00000000 00000000 00000000
Intel Pentium with F0 0F bug - workaround enabled.

CPU: After all inits, caps: 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Compat vDSO mapped to ffffe000.
CPU: Intel Pentium MMX stepping 03
Checking 'hlt' instruction... OK.
NET: Registered protocol family 16
Setting up standard PCI resources
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 512 (order: -1, 2048 bytes)
TCP: Hash tables configured (established 1024 bind 512)
TCP reno registered
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd
Freeing initrd memory: 2048k freed
Total HugeTLB memory allocated, 0
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Real Time Clock Driver v1.12ac
JS clipboard: I/O at 0x03c0
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16450
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI Shortcut mode
Time: pit clocksource has been installed.
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 2048KiB [1 disk] into ram disk... | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ done.
EXT2-fs warning: maximal mount count reached, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 124k freed
 

Enjoy this. We shall explore more later.

RIP Dennis Ritchie

Dennis Ritchie

 

The great Dennis Ritchie, the creator of C Programming Language, the reason behind which this programming blog exist today, died on 12th October 2011, at the age of 70.  

Here is a small C program as a tribute to Dennis Ritchie.

 

main() {

        printf("1941: Hello World!\n");

        printf("2011: RIP Dennis Ritchie\n");

}