On use of C99 __func__ macro

[Guillaume Dargaud]

Hello all,
Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;
}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;
}
--
Guillaume Dargaud
http://www.gdargaud.net/
"What is it about a man's cell phone going off in a theater that makes him
look more and more like Abe Lincoln ? - Jerry L. Embry.

[vippstar]

On Dec 5, 1:29 pm, "Guillaume Dargaud"
<[e-mail] rote:

Hello all,
Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;

}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;

}

There's no __func__ in C99.

[=?ISO-8859-1?Q?Bj=F6rn_Paetzel?=]

vi******@gmail.com schrieb:

On Dec 5, 1:29 pm, "Guillaume Dargaud"
<[e-mail] rote:

>#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;

}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;

}

Yes. Both expands to:

void Function(void) {
printf("We are in %s", __func__);

}

There's no __func__ in C99.

There is.

6.4.2.2 #1 says:

The identifier __func__ shall be implicitly declared by the translator
as if, immediately following the opening brace of each function
definition, the declaration

static const char __func__[] = "function-name";

appeared, where function-name is the name of the lexically- enclosing
function.

--
OMG,-10==10 in linux!

[Richard Tobin]

In article <fj**********@ccpntc8.in2p3.fr>,
Guillaume Dargaud <us*****************************@www.gdargaud.netw rote:

>Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;
}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;
}

Yes, because __func__ is required to be like a variable, rather than
a preprocessor macro.

-- Richard

--
"Consideration shall be given to the need for as many as 32 characters
in some alphabets" - X3.4, 1963.

[santosh]

vi******@gmail.com wrote:

On Dec 5, 1:29 pm, "Guillaume Dargaud"
<[e-mail] rote:

>Hello all,
Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;

}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;

}

There's no __func__ in C99.

C & V please.

[Jalapeno]

On Dec 5, 8:43 am, santosh <[e-mail]:

[e-mail] wrote:

On Dec 5, 1:29 pm, "Guillaume Dargaud"
<[e-mail] rote:

Hello all,
Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;

}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;

}

There's no __func__ in C99.

C & V please.- Hide quoted text -

Why it's right here:

http://www.youtube.com/watch?v=6lj9_zBobJs

[vippstar]

On Dec 5, 3:43 pm, santosh <[e-mail]:

[e-mail] wrote:

On Dec 5, 1:29 pm, "Guillaume Dargaud"
<[e-mail] rote:

Hello all,
Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;

}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;

}

There's no __func__ in C99.

C & V please.

I answered from memory.
Can't always be right on usenet :-)

[Neil Booth]

Richard Tobin wrote:

In article <fj**********@ccpntc8.in2p3.fr>,
Guillaume Dargaud <us*****************************@www.gdargaud.netw rote:

>Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;
}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;
}

Yes, because __func__ is required to be like a variable, rather than
a preprocessor macro.

Not "because": even if it were a macro the answer would still be yes.

Neil.

[Richard Tobin]

In article <47*********************@news2.asahi-net.or.jp>,
Neil Booth <dev@nullwrote:

>>Is it the same thing to do those two things:

#define WHERE printf("We are in %s", __func__)
void Function(void) {
WHERE;
}

And this:

void Function(void) {
#define WHERE printf("We are in %s", __func__)
WHERE;
}

>Yes, because __func__ is required to be like a variable, rather than
a preprocessor macro.

>Not "because": even if it were a macro the answer would still be yes.

Um yes. I should have said "... rather than some magic thing that
gets replaced when it is first encountered in the text".

-- Richard

--
:wq

[Guillaume Dargaud]

>>Not "because": even if it were a macro the answer would still be yes.

Um yes. I should have said "... rather than some magic thing that
gets replaced when it is first encountered in the text".

Thanks, that sums it up nicely.
--
Guillaume Dargaud
http://www.gdargaud.net/

[Tor Rustad]

vi******@gmail.com wrote:

>
There's no __func__ in C99.

Just for the record, there is a __func__ in C99, ref. 6.4.2.2.

--
Tor <bw****@wvtqvm.vw | tr i-za-h a-z>