pragma

[ramu]

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?

[Ian Collins]

ramu wrote:

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?

Compiler specific, see you documentation. There is no such word as u.

--
Ian Collins.

[Ian Collins]

Ian Collins wrote:

ramu wrote:

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?

Compiler specific, see you documentation. There is no such word as u.

Sorry, should be "your documentation".

--
Ian Collins.

[pemo]

"ramu" <ra******@gmail .com> wrote in message
news:11******** **************@ g47g2000cwa.goo glegroups.com.. .

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?

http://www.ucalgary.ca/~bgwong/n869.pdf

See 6.10.6

[Kenny McCormack]

In article <11************ ***@drone2-svc-skyt.qsi.net.nz >,
Ian Collins <ia******@hotma il.com> wrote:

ramu wrote:

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?

Compiler specific, see you documentation. There is no such word as u.

Not necessarily. Below I give a 100% ISO-standard C program that uses
'pragma'.

#include <stdio.h>
int main(void) { puts("pragma is an interestingly concept"); }

Now, you may think this is silly, but the fact that is that here in this
ng, we don't have a clue as to what the OP could possibly be talking about,
so my solution is as good as any other take on it.

Could anyone disagree?

[osmium]

"ramu" wrote:

Can anyone tell me about pragma? And can u give an example of how
to use it?

http://en.wikipedia.org/wiki/Pragma

[Chris Dollin]

Kenny McCormack wrote:

In article <11************ ***@drone2-svc-skyt.qsi.net.nz >,
Ian Collins <ia******@hotma il.com> wrote:

ramu wrote:

HI,
Can anyone tell me about pragma? And can u give an example of how
to use it?
Compiler specific, see you documentation. There is no such word as u.

Not necessarily. Below I give a 100% ISO-standard C program that uses
'pragma'.

#include <stdio.h>
int main(void) { puts("pragma is an interestingly concept"); }

Now, you may think this is silly, but the fact that is that here in this
ng, we don't have a clue as to what the OP could possibly be talking
about,

Why?
so my solution is as good as any other take on it.

Could anyone disagree?

Yes.

--
Chris "understand ing is a three-edged sword" Dollin

[Keith Thompson]

"osmium" <r1********@com cast.net> writes:

"ramu" wrote:

Can anyone tell me about pragma? And can u give an example of how
to use it?

http://en.wikipedia.org/wiki/Pragma

I wouldn't advise using that article as a source of information about
C's "#pragma". The term "pragma" is a fairly general term for a
compiler directive. The article uses C's "#include" directive as an
example; that's certainly a compiler directive, but it's not a pragma
in the sense that C uses the word.

In C90, the language defines the #pragma construct, but all pragmas
are implementation-defined.

In C99, there are several language defined #pragmas:

#pragma STDC FP_CONTRACT ...
#pragma STDC FENV_ACCESS ...
#pragma STDC CX_LIMITED RANGE ...

where the argument is one of ON, OFF, or DEFAULT. Other #pragmas
starting with "STDC" may appear in future standards; #pragmas not
starting with "STDC" are implementation-defined.

C99 also adds an operator, _Pragma ( string-literal ), which is more
flexible in some cases (it can result from macro expansion, for
example).

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.

[Kenny McCormack]

In article <ln************ @nuthaus.mib.or g>,
Keith Thompson <ks***@mib.or g> wrote:
....

In C90, the language defines the #pragma construct, but all pragmas
are implementation-defined.

In C99, there are several language defined #pragmas:

Wow. I did not know that. I thought/assumed that pragma was as much
"outside the box" as are the usual suspects (networking, graphics, blah,
blah, blah)

I stand corrected.

[Keith Thompson]

ga*****@yin.int eraccess.com (Kenny McCormack) writes:

In article <ln************ @nuthaus.mib.or g>,
Keith Thompson <ks***@mib.or g> wrote:
...

In C90, the language defines the #pragma construct, but all pragmas
are implementation-defined.

In C99, there are several language defined #pragmas:

Wow. I did not know that. I thought/assumed that pragma was as much
"outside the box" as are the usual suspects (networking, graphics, blah,
blah, blah)

I stand corrected.

For those of you who have killfiled Kenny McCormack, I felt it
necessary to point out that he's posted something sensible.

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.