Searching for history of "#if"

[Stefan Ram]

Where has this file on C's history gone to?

It used to be at:

http://cm.bell-labs.com/who/dmr/chist.pdf
http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

What I actually would like to know is:

The early C preprocessor had »#define« and »#include«.

When was »#ifdef« added and when was »#if« added?

 

[Keith Thompson]

Where has this file on C's history gone to?

It used to be at:

http://cm.bell-labs.com/who/dmr/chist.pdf
http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

What I actually would like to know is:

The early C preprocessor had »#define« and »#include«.

When was »#ifdef« added and when was »#if« added?

I think cm.bell-labs.com has been having problems recently. (I don't
have answers to your questions.)

 

[Flash Gordon]

Googling for "The Development of the C Language" turned
up the dead links you quote, but also found a few other hits
in assorted formats.

You should bookmark the Wayback Machine at
http://www.archive.org/web/web.php
Unfortunately it does not help this time. However, the bell-labs website
is back up and the document is available.

 

[Boon]

You should bookmark the Wayback Machine at
http://www.archive.org/web/web.php
Unfortunately it does not help this time. However, the bell-labs website
is back up and the document is available.

"""
Robots.txt Query Exclusion.

We're sorry, access to http://cm.bell-labs.com/cm/cs/who/dmr/chist.html
has been blocked by the site owner via robots.txt.
"""

Pity. They should make an exception for the Wayback Machine.

 

[Ian Collins]

"""
Robots.txt Query Exclusion.

We're sorry, access to http://cm.bell-labs.com/cm/cs/who/dmr/chist.html
has been blocked by the site owner via robots.txt.
"""

Pity. They should make an exception for the Wayback Machine.

It's working fine now.

 

[Boon]

It's working fine now.

No.

http://web.archive.org/web/*/http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

Bell Labs should make an exception for the Wayback Machine.

 

[Ian Collins]

No.

http://web.archive.org/web/*/http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

Well I've just read the page at

http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

 

[Sjouke Burry]

Well I've just read the page at

http://cm.bell-labs.com/cm/cs/who/dmr/chist.html

Thanks for that nice juicy piece of history documentation.

(PS: Take the last part from the link, and find much more)