Pascal assignment notation vs. C#

[Tim923]

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

-
http://mysite.verizon.net/vze8adrh/news.html (profile) --Tim923 My email is valid.

[C# Learner]

On Mon, 18 Oct 2004 14:25:11 GMT, Tim923 wrote:

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

You are right; he is wrong.

[Morten Wennevik]

Hi Tim,

Digging very deep in my memory bank from the only time I ever used Pascal
(in 1996), I believe we used := for assignment, although I'm only 80% sure
of it. = would then be equality.

--
Happy Coding!
Morten Wennevik [C# MVP]

[Daniel Weinand]

Am Mon, 18 Oct 2004 14:25:11 GMT schrieb Tim923:

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

-
http://mysite.verizon.net/vze8adrh/news.html (profile) --Tim923 My email is valid.

":=" and "=" is accurate for Pascal(Delphi)

[Tim923]

>Digging very deep in my memory bank from the only time I ever used Pascal

(in 1996), I believe we used := for assignment, although I'm only 80% sure
of it. = would then be equality.

Did BASIC use "=" for both equality and assignment? (Not Visual
Basic).

-
http://mysite.verizon.net/vze8adrh/news.html (profile) --Tim923 My email is valid.

[Dennis Myrén]

Yes.

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Tim923" <ju********@verizon.net> wrote in message
news:68********************************@4ax.com...

Digging very deep in my memory bank from the only time I ever used Pascal
(in 1996), I believe we used := for assignment, although I'm only 80% sure
of it. = would then be equality.

Did BASIC use "=" for both equality and assignment? (Not Visual
Basic).

-
http://mysite.verizon.net/vze8adrh/news.html (profile) --Tim923 My email
is valid.

[Daniel Weinand]

Am Mon, 18 Oct 2004 14:56:11 GMT schrieb Tim923:

Digging very deep in my memory bank from the only time I ever used Pascal
(in 1996), I believe we used := for assignment, although I'm only 80% sure
of it. = would then be equality.

Did BASIC use "=" for both equality and assignment? (Not Visual
Basic).

yes, basic uses "=" for both.

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

:= and =

http://www.ictp.trieste.it/~manuals/...x.doc.html#210

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"Tim923" <ju********@verizon.net> wrote in message
news:3e********************************@4ax.com...

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

-
http://mysite.verizon.net/vze8adrh/news.html (profile) --Tim923 My email

is valid.

[Sriram Krishnan]

Hmm..but I vaguely remember a LET statement which was meant to clear things
up

--
Sriram Krishnan

http://www.dotnetjunkies.com/weblog/sriram
"Daniel Weinand" <we***********@web.de> wrote in message
news:zy****************************@40tude.net...

Am Mon, 18 Oct 2004 14:56:11 GMT schrieb Tim923:

Digging very deep in my memory bank from the only time I ever used Pascal
(in 1996), I believe we used := for assignment, although I'm only 80%
sure
of it. = would then be equality.

Did BASIC use "=" for both equality and assignment? (Not Visual
Basic).

yes, basic uses "=" for both.

[James Curran]

"Sriram Krishnan" <ks*****@NOSPAMgmx.net> wrote in message
news:uy**************@tk2msftngp13.phx.gbl...

Hmm..but I vaguely remember a LET statement which was meant to clear things up

Yes, originally Basic syntax required "LET X = 5" for assignment.
However, as microcomputers dawned, and Basic programs had to fit into 4K
(that's kilobytes, not megabytes) of RAM, so the syntax got shortened, as
Basic interpreter (we don't need no stickin' compilers) realized that one
could always tell which was which.

Then came C, which tried it's best to allow assembler coding conventions
in a higher level language. And to pull that off, they need to allow
assignments in the middle of a while() statement. (*) Suddenly, you could
have an assignment & a comparison in the same context, and you needed a way
of telling them apart.
(*) Putting an assignment inside a if() statement is OTOH, completely
unnecessary, and is allowed in C programs (probably) just so early C
compilers could use the same expression evaluator for both if()s and
while()s.

--
Truth,
James Curran
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
(note new day job!)

[genc ymeri]

Pascal (TPacal, for DOS, WIN3.1, and later on became known as Delphi ) uses
" := "

"C# Learner" <cs****@learner.here> wrote in message
news:uz***************@csharp.learner...

On Mon, 18 Oct 2004 14:25:11 GMT, Tim923 wrote:

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

You are right; he is wrong.

[C# Learner]

On Mon, 18 Oct 2004 14:25:11 GMT, Tim923 wrote:

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

Bringing this on-topic, I much prefer ':=' and '=' to '=' and '=='
(respectively).

A quick glance at Pascal's ':=' and there's no doubt in your mind that it's
an assignment. A quick glance at C's '=', and then another glance, and
/then/ you know.

[Daniel O'Connell [C# MVP]]

"C# Learner" <cs****@learner.here> wrote in message
news:j4***************@csharp.learner...

On Mon, 18 Oct 2004 14:25:11 GMT, Tim923 wrote:

From my days of programming Pascal in the early 1990s, I remember
using ":=" for assignment and "=" for equality, but someone else
remembers "=" and "==" just like C#. Does anyone remember?

Bringing this on-topic, I much prefer ':=' and '=' to '=' and '=='
(respectively).

A quick glance at Pascal's ':=' and there's no doubt in your mind that
it's
an assignment. A quick glance at C's '=', and then another glance, and
/then/ you know.

I disagree. I personally have no problem with distinguishing either one.

:= just looks silly.

[C# Learner]

On Mon, 18 Oct 2004 23:21:18 -0500, Daniel O'Connell [C# MVP] wrote:

:= just looks silly.

LOL

[C# Learner]

On Mon, 18 Oct 2004 23:21:18 -0500, Daniel O'Connell [C# MVP] wrote:

A quick glance at Pascal's ':=' and there's no doubt in your mind that
it's
an assignment. A quick glance at C's '=', and then another glance, and
/then/ you know.

I disagree. I personally have no problem with distinguishing either one.

Luckily for you, you're sharper than all those C-language programmers who
have had such trouble differentiating between C's equality and assignment
operators that they go so far as to writing the constant on the left-hand
side, in order that the compiler will flag an attempted assignment to it;
e.g.:

(5 == foo) /* correct */

or

(5 = foo) /* mistake -- flagged by compiler */

[Willem van Rumpt]

Which actually was a very, very usefull way to avoid hard to trace bugs.
I don't find it all that difficult to differentiate between
= and == but a typo is easily made, even more so if you're developing
both in Pascal and C ;)

Willem van Rumpt

C# Learner wrote:

Luckily for you, you're sharper than all those C-language programmers who
have had such trouble differentiating between C's equality and assignment
operators that they go so far as to writing the constant on the left-hand
side, in order that the compiler will flag an attempted assignment to it;
e.g.:

(5 == foo) /* correct */

or

(5 = foo) /* mistake -- flagged by compiler */

[Jon Skeet [C# MVP]]

Willem van Rumpt <no**********************@no.spam.kooijman.nl> wrote:

Which actually was a very, very usefull way to avoid hard to trace bugs.
I don't find it all that difficult to differentiate between
= and == but a typo is easily made, even more so if you're developing
both in Pascal and C ;)

And of course, this is one reason why C# forces the type of expression
in an "if" statement to be bool...

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too