code become grey

[weixj2003ld]

Hello,
I compiled my example with msvc2005 ，and the warning occured：
c:\coin-3.0.0-bin-msvc8\include\inventor\sbbasic.h(95) : warning C4100: “divider”: unreferenced formal parameter。I opened the file sbbasic.h,and found that code as follows:

inline void SbDividerChk(const char * funcname, Type divider) {
#ifndef NDEBUG
  //from here the word become grey
 if (!(divider != static_cast<Type>(0)))
    cc_debugerror_post(funcname, "divide by zero error.", divider);
// end of the word becoming  grey
#endif // !NDEBUG
}

inline void SbDividerChk(const char * funcname, Type divider) {
#ifndef NDEBUG
  //from here the word become grey
 if (!(divider != static_cast<Type>(0)))
    cc_debugerror_post(funcname, "divide by zero error.", divider);
// end of the word becoming  grey
#endif // !NDEBUG
}

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Why?

[Sheng]

It means you have defined NDEBUG.

[weixj2003ld]

how could I get rid of the warning?

[Sheng]

use google, you can solve it in 2 minutes.