10 More Discussions You Might Find Interesting
1. Programming
I saw a header (.h) file with mixture of "regular" function declarations and other extern function declarations. As I was told all function declarations are implicitly external and the extern on functions declarations is superfluous. Here my focus is on function declaration, not variable yet.
int... (2 Replies)
Discussion started by: yifangt
2 Replies
2. Programming
In the header file data.h i got:
const char ack_msg = "ack: received your msg\n";
In the code file server.c i got:
extern const char ack_msg;
And else it is only used in a function call:
user$ grep ack_msg *c *h
server.c:extern const char ack_msg;
server.c: n = write(clientsfd,... (5 Replies)
Discussion started by: tornow
5 Replies
3. Ubuntu
Hi,
I am new to linux stuff. I want to use linux iptables to configure rule so that all my incoming traffic with protocol "tcp" is forwarded to the "FORWARD CHAIN". The traffic i am dealing with has destination addresss of my machine but i want to block it from coming to input chain and somehow... (0 Replies)
Discussion started by: arsipk
0 Replies
4. Programming
Why this is happening when both of them compiled together and run?
I am getting segmentation fault SIGSEGV.
File1.c:
int arr;
File2.c:
extern int *arr;
int main() {
arr = 100;
} (3 Replies)
Discussion started by: royalibrahim
3 Replies
5. Linux
Hello there Unix & Linux Guru's and Gifted ones,
Can anyone help me configure fetchmail on my redhat 9.0
This sounds to be silly but really I'm new to linux.
I really need step by step installation and configuration on our company's required Redhat 9.0 (shrike) OS.
Thank you and God... (2 Replies)
Discussion started by: struggled_boy
2 Replies
6. UNIX for Dummies Questions & Answers
Hi there,
I receive job applications sent by a website daemon. The email subject contains the job offer description. The problem is that gmail tends to concatenate emails with the same subject and I don't really want all applications in the same email. Thus the from field contains the candidate... (0 Replies)
Discussion started by: chebarbudo
0 Replies
7. Linux
Hi there, I'm having a bit of a strange problem which I would appreciate some help with.
The Problem:
I have two external hard drives, but I'm borrowing one off my parents to copy data too (one of mine, which is identical to theirs - WD MyBook 300g - is on its way out).
Fedora 9 recognizes... (3 Replies)
Discussion started by: lasthidingplace
3 Replies
8. Programming
file1.c
int a1;
int main()
{
a1 = 2;
printf("\na1 = %d\n", a1);
next();
printf("\na1 = %d\n", a1);
next1();
printf("\na1 = %d\n", a1);
}
file2.c
#include <stdio.h>
int b1 = 0;
void next(void) (1 Reply)
Discussion started by: Tanvirk
1 Replies
9. Programming
Hi,
Please let me know if the extern keyword is necessary for using functions which is defined and declared in another file and and used in a different file where both these files are linked together.
thanks (8 Replies)
Discussion started by: naan
8 Replies
10. UNIX for Dummies Questions & Answers
Hi peeps,
We are having around 60 users.
The time set to retrieve the mail is 300 sec.
But it's taking around 1 hour to deliver mails.
I am using debian sarge 3.1.
any clues?
And how it will affect if I decrease the time?
My machine has got 1 p4 3.0 GHZ processor and 1 GB ram.
The home... (2 Replies)
Discussion started by: squid04
2 Replies
ldd(1) General Commands Manual ldd(1)
NAME
ldd - List dynamic dependencies of executable files or shared objects
SYNOPSIS
ldd [-rdV] filename
OPTIONS
Prints warnings for any unresolved data symbol references that would occur as a result of filename being executed. (Checks references to
only data objects, not functions.) Prints warnings for any unresolved symbol references that would occur as a result of filename being
executed. (Checks references to both data objects and functions.) Displays the version of the ldd command.
DESCRIPTION
The ldd command lists the dynamic dependencies of an executable file or shared object: If filename is an executable file, ldd lists the
pathnames of all shared objects that would be loaded as a result of executing filename. If filename is a shared object, ldd lists the
pathnames of all shared objects that would be loaded as a result of loading filename. The ldd command expects shared objects to have exe-
cute permission, and if this is not the case, it will issue a warning before attempting to process the file.
NOTES
The ldd command does not list shared objects explicitly attached by using dlopen().
The ldd command prints the record of shared object pathnames to stdout. The optional list of symbol resolution problems are printed to
stderr.
EXIT STATUS
If filename is not an executable file or a shared object, a non-zero exit status is returned.
EXAMPLES
The following command lists the static dependencies of libXm.so: ldd /usr/shlib/libXm.so The following command lists the static dependen-
cies of libXm.so as well as any unresolved symbol in libXm.so or any of its dependents: ldd -r /usr/shlib/libXm.so
SEE ALSO
loader(5)
ldd(1)