Dynamic libs and undefined references
Hi,
I am learning to use dynamic libraries. I thought that it was possible to compile a program with shared libs in which all references are not defined, so that you can load other shared libs with dlopen to define the references during the running of the code.
Is it not the case? If it is, what are the linking options to be given to gcc and ld?
Thanks,
CCox
You can not LINK to a dynamic library that doesn't resolve all references your application needs.
You can have load a dynamic library at runtime, which would allow you to request the pointer to a function inside the library at runtime. But you can't link to it.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
OK, thanks for the answer.
I had some progress with my program, but a new problem occured:
My shared libs asks for symbols of my static libs, and I get "unresolved symbols". Yet I was thinking my linking was fine...
Any idea for that?
Best,
CCox
hi plz help me
for int86 system programing
Problem?
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
Can you show more precisely how you are linking, how your code is organized, etc?Originally Posted by ccox421
Code://try //{ if (a) do { f( b); } while(1); else do { f(!b); } while(1); //}
