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Home/ Questions/Q 857385
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Editorial Team
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Editorial Team
Asked: May 15, 20262026-05-15T08:23:30+00:00 2026-05-15T08:23:30+00:00

Can you help? The following code: class MT { public: static int ms_number; };

  • 0

Can you help?
The following code:

class MT
{
public:
    static int ms_number;

};

int MT::ms_number;

yields:

Error   8   error LNK2005: "public: static int MT::ms_number" 
      (?ms_number@MT@@2HA) already defined in ProjName.obj

Why?

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  1. Editorial Team
    Editorial Team
    2026-05-15T08:23:31+00:00Added an answer on May 15, 2026 at 8:23 am

    You need to move this line:

    int MT::ms_number;
    

    out of your .h file and into a single .cpp file.

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