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Why do we use extern "C" in C++ code?
You need to use extern "C" in C++ when declaring a function that was implemented/compiled in C.
Using extern "C" lets the compiler know that we want to use C naming and calling conventions. This causes the compiler to sort of entering C mode inside our C++ code. This is needed because C++ compilers mangle the names in their symbol table differently than C compilers and hence behave differently than C compilers.
Updated on: 30-Jul-2019
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