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c++linkerbufferabstract-data-type

Ring buffer implementation linker error

I am implementing a Ring Buffer construct in C++ in the course of a workshop we are going through. Now, the source code may be okay, but the linker just won't work properly - or more likely my code or project settings.

Header: http://pastie.org/private/rbx84gvlzc9ipzk1mzczg

Source: http://pastie.org/private/kkjjhwywfljgnw75jlmxsq

The build process says:

1>------ Build started: Project: RingBuffer, Configuration: Debug Win32 ------ 1> RingBuffer.cpp 1>RingBuffer.obj : error LNK2019: unresolved external symbol "public: __thiscall RingBuffer::RingBuffer(int)" (??0RingBuffer@@QAE@H@Z) referenced in function _main 1>C:\Users*.*\Documents\Visual Studio 2013\Projects\RingBuffer\Debug\RingBuffer.exe : fatal error LNK1120: 1 unresolved externals ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Thanks in advice for any helpful suggestions.

Solution

  • You have not defined the constructor

    RingBuffer(int storageAmount);

    You gave definition of 

    RingBuffer();

    But using the previous one in main.

    This is clear from the error message

    unresolved external symbol public: __thiscall RingBuffer::RingBuffer(int)

    Linker can not find the method to link.