Mainly, int is a primitive, not a Cclass, so you cannot new it. You can look for a Class Integer or the like, or write a class holding an int, or call malloc(), calloc() or realloc() using an extern "C" around the include files. Or you can just declare a not automatic int: global, file static or subroutine static, and pass the pointer &integer_name into your variable.
An extern "C" {} block is just for linkage information -- prototypes, like #includes, not for actual execution. It says to link the names without mangling for argument and return type checking. C++ was originally just a C preprocess, so the mangling achieved the type checking.
Conversely, if you are trying to call C++ libs in a C main or other code, the C main or other code would have extern "C++" {} blocks for the prototypes of the lib, usually in a #include for that lib.
Hello,
I am not that experienced with Linux, and I am currently facing some issues.
The application I'm working on uses hundreds of threads. To optimize the memory usage, I am putting all my data inside a shared object (so).
The steps for this are as follows:
1. a C file (generated... (17 Replies)
Hello,
I am new to programming shared objects and I was hoping someone could tell me if what I want to do is possible, or else lead me in the right direction.
I have a main program that contains an abstract base class. I also have a subclass that I'm compiling as a shared object. The subclass... (13 Replies)
Hi,
I would like to create a shared object ( .so).
This shared object
1. uses the functions from a library.
2. Also it should be able to use the global variable in an app
To achieve this what should I do ? 1) To use the functions in the library should I give the -ld option while... (1 Reply)
Hello,
While running a c++ shared object on AIX I am facing below error -
rtld: 0712-001 Symbol __ct__3ETDFv was referenced
from module /bancs/aml/lib/libmonitor.so(), but a runtime definition
of the symbol was not found.
rtld: 0712-001 Symbol etd_insert__3ETDFv was... (3 Replies)
Hi,
I have created a shared object (abc.so) which has a function sum(int a, int b).
Is there any way to load the "abc.so" and use the sum function using shell script..
thanks in advance (2 Replies)
Hi All,
I have a problem with the shared objects setup in AIX. We have a customized shell written by the developers over here. When i issue a MQ Series command (mqsilist) it is giving the error as . All the commands making use of this libImbCmdLib.a.so is failing. But when executed in normal... (1 Reply)
Hi
I have a multithreaded daemon(server) which will accept connections from various clients and sends back results to them.
In order to serve my daemon clients, it has to establish a TCP connection to another server(vendor supplied which is listening on a specific TCP port) and gets the... (11 Replies)
Hi,
When using shared objects on AIX 4.3 i am getting runtime problems.
I have a small sample program which links to a shared object libray, oracle and system related libraries.
At runtime it fails (gives segmentation fault and coredump ) in one proc file when executing login statement.
But... (0 Replies)
Hi All,
I created the share object file using
gcc -shared -fpic mypp.cpp -o myp.so
but, pls tell me how to link this .so file to my client program.
Thanks (0 Replies)
Hi,
I have been trying to create a sharef object on my HP UX 11 machine
(HP-UX <myhostname> B.11.00 A 9000/879 ...... two-user license)
to create the shared object first I am creating the object file using
cc -Aa -c +z dyn.c
(I use -Aa and +z as per HP's manual on linkers ) to create the... (0 Replies)