Hello World

[Guest]

Hello World!

 

[Emmanuel Delahaye]

Hello World!

Wrong. It's

#include <stdio.h>

int main ()
{
puts ("Hello World!");
return 0;
}

 

[August Derleth]

Wrong. It's

#include <stdio.h>

int main ()
{
puts ("Hello World!");
return 0;
}

Or, if you want to annoy someone:

#include <stdio.h>

int main(void)
{
do { puts("Hello, world!"); } while(1);
return 0;
}



(Interestingly, more than a few programming examples seem to think the
Hello, world! program /should/ be an infinite loop. I have no idea why.)

 

[CBFalconer]

.... snip ...

#include <stdio.h>

int main(void)
{
do { puts("Hello, world!"); } while(1);
return 0;
}

Since the return never gets executed, is the program correct under
C90 if the line is elided?

Chuck, making trouble.

 

[Old Wolf]

Or, if you want to annoy someone:

#include <stdio.h>

int main(void)
{
do { puts("Hello, world!"); } while(1);
return 0;
}

I think the "return 0;" is superfluous here (and may even generate
a compiler warning for unreachable code).

(Interestingly, more than a few programming examples seem to think the
Hello, world! program /should/ be an infinite loop. I have no idea why.)

10 PRINT "HELLO"
20 GOTO 10

 

[Mabden]

I think the "return 0;" is superfluous here (and may even generate
a compiler warning for unreachable code).


10 PRINT "HELLO"
20 GOTO 10

Because there are so many people in the World...?

 

[Guillaume]

(Interestingly, more than a few programming examples seem to think the

Hello, world! program /should/ be an infinite loop. I have no idea why.)

That's called flooding.

 

[Dan Pop]

Since the return never gets executed, is the program correct under
C90 if the line is elided?

Most definitely yes. Depending on your particular definition of program
correctness, it could be *always* elided: its removal doesn't invoke
undefined behaviour and doesn't require a diagnostic.

Chuck, making trouble.

Failed attempt ;-)

Dan

 

[Fao, Sean]

I think the "return 0;" is superfluous here (and may even generate
a compiler warning for unreachable code).




10 PRINT "HELLO"
20 GOTO 10

Funny how a simple, probably troll, post can yield a discussion in it of
itself.

 

[Joe Wright]

I think the "return 0;" is superfluous here (and may even generate
a compiler warning for unreachable code).




10 PRINT "HELLO"
20 GOTO 10

10 PRINT "GOODBYE"
20 GOSUB 10

It's been a long time..

 

[Irrwahn Grausewitz]

August Derleth <[email protected]> wrote:.

10 PRINT "HELLO"
20 GOTO 10

program Nikolaus;

var
there_is_a_cold_day_in_hell : integer;

begin
there_is_a_cold_day_in_hell := 0;
repeat
writeln('Wotsit Wirth');
until there_is_a_cold_day_in_hell;
end.

<g,d&rf>

Regards

 

[Joona I Palaste]

program Nikolaus;

var
there_is_a_cold_day_in_hell : integer;

begin
there_is_a_cold_day_in_hell := 0;
repeat
writeln('Wotsit Wirth');
until there_is_a_cold_day_in_hell;
end.

<g,d&rf>

Unlike C, Pascal has an explicit boolean type, and does not implicitly
convert integers into booleans. Therefore the above code won't even
compile.

--
/-- Joona Palaste ([email protected]) ------------- Finland --------\
\-- http://www.helsinki.fi/~palaste --------------------- rules! --------/
"The obvious mathematical breakthrough would be development of an easy way to
factor large prime numbers."
- Bill Gates

 

[Irrwahn Grausewitz]

var
there_is_a_cold_day_in_hell : integer; [...]
until there_is_a_cold_day_in_hell;

[...]

Unlike C, Pascal has an explicit boolean type, and does not implicitly
convert integers into booleans. Therefore the above code won't even
compile.

You're right; my Pascal days are long since over, and I had to think
hard to recall at least some of its obtuse syntax. 'Twas a silly joke
anyway...

Regards

 

[Zdenek Zikan]

10 PRINT "HELLO"

10 PRINT "GOODBYE"
20 GOSUB 10

It's been a long time..

Wow, I haven't seen it for ages!

RUN

-ZZ

 

[CBFalconer]

<snip>

program Nikolaus;

error: use "program Nikolaus(output);"

var
there_is_a_cold_day_in_hell : integer;

should be: "there_is_a_cold_day_in_hell : boolean;"

begin
there_is_a_cold_day_in_hell := 0;

should be: "there_is_a_cold_day_in_hell := false;"
(alternative - modify the 'until' statement - less clear)

repeat
writeln('Wotsit Wirth');
until there_is_a_cold_day_in_hell;
end.

<g,d&rf>

and it should now pass the compiler. <running>