shared-libraries

I just started programming in C++ and I've realized that I've been having to write the same code over and over again(mostly utility functions). So, I'm trying to create a shared library and install it in PATH so that I could use the utility functions whenever I needed to. Here's what I've done so far :- Create a file utils.h with the following contents :- #include<iostream> #include<string> std::string to_binary(int x); Create a file utils.cpp with the following contents :- #include "utils.h" std::string to_binary(int x) { std::string binary = ""; while ( x > 0 ) { if ( x & 1 ) binary += "1";

I have a local shared library which is not in $LD_LIBRARY_PATH. I want to run my executable, but since it cannot find the shared library in the system folders, it outputs "error while loading shared libraries". A possible fix for this is to export a new LD_LIBRARY_PATH containing the local library folder. How can I export automatically this environment variable within CMake? If your shared lib is not build in the same CMake project of your executable, you can use the CMake rpath handling like this: set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE) When you will run make install , CMake will

I prepared a C++ interface to a legacy Fortran library. Some subroutines in the legacy library follow an ugly but usable status code convention to report errors, and I use such status codes to throw a readable exception from my C++ code: it works great. On the other hand, sometimes the legacy library calls STOP (which terminates the program). And it often does it even though the condition is recoverable. I would like to capture this STOP from within C++, and so far I have been unsuccessful. The following code is simple, but exactly represents the problem at hand: The Fortran legacy library

Most of the time, when you compile a shared library, executing it is meaningless and doing so produces nothing useful: $ ./libfoobarbaz.so Segmentation fault However, the folks at GNU have been able to stick in some output when glibc is executed: $ /lib/libc.so.6 GNU C Library (Debian EGLIBC 2.11.2-10) stable release version 2.11.2, by Roland McGrath et al. Copyright (C) 2009 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 4.4.5.

Is there any way to call the functions which are in a so library from my Java code? Generally, is it possible to use Linux so libraries in Java programs? paulsm4 The answer is "JNI" :) Here are a couple of links: How to compile dynamic library for a JNI application on linux? http://learn-from-the-guru.blogspot.com/2007/12/java-native-interface-jni-tutorial-hell.html http://docs.oracle.com/javase/6/docs/technotes/guides/jni/ Another wayto access libraries form java besides JNI is JNA . I find that in many cases it's easier to use then JNI, but that's just my personal opinion. You cannot use