* No NULL in 3.0.2???
@ 2001-10-30 8:26 JDonner
2001-10-30 11:36 ` Claudio Bley
0 siblings, 1 reply; 2+ messages in thread
From: JDonner @ 2001-10-30 8:26 UTC (permalink / raw)
To: gcc-help
Hi,
This:
int main(int argc, char** argv)
{
int* p = NULL;
}
produces this:
null.cpp: In function `int main(int, char**)':
null.cpp:3: `NULL' undeclared (first use this function)
null.cpp:3: (Each undeclared identifier is reported only once for each
function
it appears in.)
Isn't NULL still part of the standard? I can't believe it'd be
deprecated. I'm sure there are still a lot of people who use NULL.
If NULL _is_ slated for eventual removal, I think it's still
very much alive right now.
gcc -v
Reading specs from
/usr/local/gcc302/lib/gcc-lib/i686-pc-linux-gnu/3.0.2/specs
Configured with: /home/jdonner/mk302/gcc-3.0.2/configure
--enable-threads=posix --prefix=/usr/local/gcc302
Thread model: posix
gcc version 3.0.2
Jeff
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: No NULL in 3.0.2???
2001-10-30 8:26 No NULL in 3.0.2??? JDonner
@ 2001-10-30 11:36 ` Claudio Bley
0 siblings, 0 replies; 2+ messages in thread
From: Claudio Bley @ 2001-10-30 11:36 UTC (permalink / raw)
To: JDonner; +Cc: gcc-help
>>>>> "JDonner" == JDonner <jdonner0@earthlink.net> writes:
JDonner> Hi, This:
JDonner> int main(int argc, char** argv) { int* p = NULL; }
JDonner> produces this:
JDonner> null.cpp: In function `int main(int, char**)':
JDonner> null.cpp:3: `NULL' undeclared (first use this function)
JDonner> null.cpp:3: (Each undeclared identifier is reported only
JDonner> once for each function it appears in.)
JDonner> Isn't NULL still part of the standard? I can't believe
JDonner> it'd be deprecated. I'm sure there are still a lot of
JDonner> people who use NULL.
JDonner> If NULL _is_ slated for eventual removal, I think it's
JDonner> still very much alive right now.
NULL never was in the C++ standard - it is a C invention and in fact,
Bjarne Stroustrup (the "inventor" of C++) strongly discourages its use
in his book "The C++ Programming Language". If programming in C++ you
should really prefer '0' over the preprocessor variable 'NULL'.
Claudio
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2001-10-30 8:26 No NULL in 3.0.2??? JDonner
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