03-26-2013
Quote:
Originally Posted by
shamrock
You have to look at the way the different variables are setup in the segments to understand the linkages between them. The global i defined in file2.c lies in the data segment and is unrelated to the local i inside main within the file2.c which lies on the stack frame created for main...similarly the local i inside foo of file1.c lies in the stack frame created for foo and is unrelated to the global i or the i that is local to main...let me know if this helps or if i have managed to confuse you even more
Your analysis is incorrect. There are no versions of i which are local to a block (function or otherwise). All of those identifiers refer to the same externally-linked, global storage allocation.
Regards,
Alister
This User Gave Thanks to alister For This Post:
10 More Discussions You Might Find Interesting
1. Programming
Hi
I'm getting
ld: fatal: option -h and building a dynamic executable are incompatible
ld: fatal: Flags processing errors
When I run
ld -shared -L/usr/dt/lib -lDtSvc -o builtin.so Workspace.o
after running
gcc -fPIC -I/usr/X11R6/include -I/usr/dt/include -c Workspace.c
I'm... (6 Replies)
Discussion started by: laho
6 Replies
2. UNIX for Dummies Questions & Answers
Getting the following error ,
ld: /opt/syncsort39/lib/libsyncsort.sl: Mismatched ABI. 64-bit PA shared library found in 32-bit link.
Is there any difference in the ld options in opt file while linking a 64 bit shared library ? Or is the problem because we are trying to link both 32 bit and 64... (3 Replies)
Discussion started by: arunkumar_mca
3 Replies
3. Shell Programming and Scripting
Hi,
I got a script which sends the Email to the user based on certain variables received from Tivoli Server Monitoring 6.1.
Now to keep track of the mails I have wrote a stored procedure in DB2 as we use DB2 UDB as back end which take the variables that were used to send the mail and store it... (3 Replies)
Discussion started by: tcskurra
3 Replies
4. Programming
Hello,
we are a group of students (mechanical engineering) who are trying to port UNIX-software to a PC Linux system during a study project. The first goals were achieved: compiling the Fortran code and creating object files. However, we encounter errors during the linking process.
This is... (0 Replies)
Discussion started by: Dynamo
0 Replies
5. Programming
Hello. This shouldn't be an unusual problem, but I cannot find anything about it at google or at other search machine.
So, I've made an application using C++ and QtCreator. I 've made a new mime type for application's project files.
My system (ubuntu 10.10), when I right click a file and I... (3 Replies)
Discussion started by: hakermania
3 Replies
6. Programming
gcc -g -o MY_ELF test1.c test2.c -lm
I get this error multiple times...
/tmp/cc5TzMPo.o:(.data+0x0): multiple definition of 'XYZ' (1 Reply)
Discussion started by: dragonpoint
1 Replies
7. Programming
I have a C binary file(.so as extension) which is delivered by a product.
How do i use this functionalities of this .so file in my C program?
How can in link the .so to my C program? (1 Reply)
Discussion started by: vkca
1 Replies
8. UNIX for Advanced & Expert Users
Hi,
We have installed linux6(RHEL) OS and installed datastage application on that.
First time installation worked fine and our all services related to datastage was up and running.
When we stopped the datastage and restarted its giving below error while restart:-
./uv -admin -start
... (0 Replies)
Discussion started by: prasson_ibm
0 Replies
9. Programming
I am on a FreeBSD system trying to build a piece of software that I wrote. I had built it in the past but recently reinstalled FreeBSD. I am not sure what is going on. The software depends on and wxgtk2.8.
Using g++:
$ make
g++ -c `wx-config --cxxflags`... (9 Replies)
Discussion started by: AntumDeluge
9 Replies
10. Linux
Hi,
Currently I am migrating codes from unix to Linux. When doing linking(ld) getting the below error.
Error is :ld: invalid BFD target `--shared'
Providing the script of the ld:
ld -b -G -o lib/libatk.so ./src/atk_db.o ./src/atk_gcl.o ./src/atk_options.o ./src/atk_exception.o... (1 Reply)
Discussion started by: jrkar
1 Replies
global(n) Tcl Built-In Commands global(n)
__________________________________________________________________________________________________________________________________________________
NAME
global - Access global variables
SYNOPSIS
global varname ?varname ...?
_________________________________________________________________
DESCRIPTION
This command has no effect unless executed in the context of a proc body. If the global command is executed in the context of a proc body,
it creates local variables linked to the corresponding global variables (though these linked variables, like those created by upvar, are
not included in the list returned by info locals).
If varname contains namespace qualifiers, the local variable's name is the unqualified name of the global variable, as determined by the
namespace tail command.
varname is always treated as the name of a variable, not an array element. An error is returned if the name looks like an array element,
such as a(b).
EXAMPLES
This procedure sets the namespace variable ::a::x
proc reset {} {
global a::x
set x 0
}
This procedure accumulates the strings passed to it in a global buffer, separated by newlines. It is useful for situations when you want
to build a message piece-by-piece (as if with puts) but send that full message in a single piece (e.g. over a connection opened with socket
or as part of a counted HTTP response).
proc accum {string} {
global accumulator
append accumulator $string
}
SEE ALSO
namespace(n), upvar(n), variable(n)
KEYWORDS
global, namespace, procedure, variable
Tcl global(n)