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I feel that header files which i include in c++ acts as equivalents of GEMS in ruby but i am not sure.A brief description of gems along the lines of c++ will be helpful
In languages such as Ruby and Java you merely 'require' or similar a package (which is called a gem in Ruby). In C++, you generally need both to #include one or more header files, and also to link with a (dynamic or static) library.
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I search the Python/C api and I write the my code. But this code shouldn't have .so like library files. İs it possible? If possible please show me to way.
I use CFFI,cython,pybind11 this is have the same way.
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I am a newbie programmer in C++, I already know that I can use extern keyword to access functions and global variables on the other files in my project but the problem that I faced to, is that how can I use structs, enums placed (available in other files of my project) in my current .cpp file?
T.I.A
You should declare them in a header file, then #include them when you need them. You can still define them in a cpp file.
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What scripting languages can only interface to libraries that implement a C API? Assume we won't be using SWIG or other third-party tool. One example of such a scripting language is Lua.
Pretty much all the major languages have a runtime based in C and require you to directly or indirectly through FFI interface through a C API/ABI, these include but are not limited to the following.
Squirrel
Lua
Ruby
Python
JavaScript
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I am in an environment which has no C++ compiler software installed, and I was wondering if it was possible for me to compile C++ code without having to install anything.
From within PS run help add-type -full and look for the F# example (example 7 on my system). Assuming you have a C++ compiler that follows the "CodeDom" model, you can mirror the F# example.
Of the two alternatives you gave, I'm going to go with "blindly obvious"
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Can C or C++ be used to program a library in python? I know that python can be used to write a library but I am wondering if C or C++ can be used.
Definitely. There are lots of high performance libraries written in C (simplejson being a notable and fairly simple example.)
See http://wiki.python.org/moin/IntegratingPythonWithOtherLanguages