"instruction pointer" is a hardware register and doesn't make much sense. I think you mean the function pointer? Just the function name without the parameters gives you the pointer.
You cannot take a pointer to main in C++ however, it's special. Some C compilers will let you though.
---------- Post updated at 01:16 PM ---------- Previous update was at 01:05 PM ----------
...and for class members, you can take a pointer like:
hi all
1) how to determine available ports in a box (solaris)
do i have to go for a netstat on all the ports?
2) how to block a particular port for a particular type of connection.
Any help would be greatly appreciated
Thanks (7 Replies)
Is there a way to do this in Solaris?
For instance, suppose I run the following:
$ swap -l
swapfile dev swaplo blocks free
/dev/md/dsk/d501 85,501 16 16780208 16780208
$ swap -s
total: 3377368k bytes allocated + 519416k reserved = 3896784k used, 11011992k available... (1 Reply)
hello,
is there a utility to determine which object files are used to create a binary executable file?let me explain, please:
for ex. there are three files:
a.o b.o c.o
and these files are used to create a binary called:
prg
namely, a.o b.o c.o -> prg
so, how can i determine these three... (1 Reply)
I got the following code, it partially works. Can someone tell me why it partially doenst work?
#!/bin/sh
file=$1
if
then
echo "File is a directory"
else
echo "File is not a directory!"
fi
heres the output:
philip@philip-laptop:~/Desktop$ sh exFive.sh test.java
File is... (4 Replies)
Is there any way to know the L2 cache size from examinging to boot log. Here is my boot logLinux version 2.6.13-jaluna (root@localhost.localdomain) (gcc version 3.2.2) #4
Thu Apr 23 23:16:10 EDT 2009
TMS320DM643X port (C) VirtualLogix and others
Designed for the EVMDM6437 board, Spectrum Digital... (3 Replies)
Can someone give me some guidance on what command to run to list how many compiler seats/licenses I am licensed for? This is an AIX system.
Thanks,
Justin
---------- Post updated 04-30-10 at 10:03 AM ---------- Previous update was 04-29-10 at 02:42 PM ----------
I can't believe nobody... (3 Replies)
Hi all,
When I use an editor (vi) that is spawned in a remote server, visually I could see the latency between typing a character/word and being displayed on the terminal. I could see this visually but how do I get a metric on this or how to quantify this?
As expected, when I type in a editor... (6 Replies)
Hello all,
I have a question about what you think the best practice is to determine what region you are running on when you have a system setup with a DEV/TEST, QA, and PROD regions running the same scripts in all.
So, when you run in DEV, you have a different directory structure, and you... (4 Replies)
I have this script which is very easy:
file=`echo 01114`
echo $file
01114
then I ran this
if ; then echo "yes";fi
it returned yes even though there are only 5 digits there
So then I tried
file=`echo abcd`
echo $file
abcd
if ]; then echo "yes";fi
if ]; then echo "yes";fi
It... (2 Replies)
Discussion started by: newbie2010
2 Replies
LEARN ABOUT NETBSD
__builtin_constant_p
__BUILTIN_CONSTANT_P(3) BSD Library Functions Manual __BUILTIN_CONSTANT_P(3)NAME
__builtin_constant_p -- GNU extension to determine compile time constants
SYNOPSIS
int
__builtin_constant_p(value);
DESCRIPTION
The __builtin_constant_p() is a GNU extension for determining whether a value is known to be constant at compile time. The function is
closely related to the concept of ``constant folding'' used by modern optimizing compilers.
If the value is known to be a compile-time constant, a value 1 is returned. If __builtin_constant_p() returns 0, the value is not a compile-
time constant in the sense that gcc(1) was unable to determine whether the value is constant or not.
EXAMPLES
A typical example of the use of __builtin_constant_p() involves a situation where it may be desirable to fold the computation if it involves
a constant, but a function call is needed otherwise. For instance, bswap16(3) is defined in NetBSD as:
#define bswap16(x)
(__builtin_constant_p((x)) ?
__byte_swap_u16_constant(x) : __BYTE_SWAP_U16_VARIABLE(x))
SEE ALSO gcc(1), __builtin_object_size(3), __builtin_return_address(3)CAVEATS
This is a non-standard, compiler-specific extension.
BSD December 19, 2010 BSD