在Netbeans IDE 8.0.2中使用（低于分数）“ _”

Question

In header files i have a function

typedef std::vector<double> 1DVector
typedef std::vector<1DVector> 2Dvector
static void FuncA(2DVector& M, 2DVector& S, 2DVector& MSI);

in .cpp file

void ClassTemp::FuncA(2DVector& _M, 2DVector& _S, 2DVector& _MSI);

I am using netbeans IDE 8.0.2. When i am compiling this code, I am getting errors like

error: expected ',' or '...' before numeric constant

error: prototype for void void ClassTemp::FuncA(2DVector& _M, 2DVecto
r& _S, 2DVector& _MSI) does not match any in class ClassTemp.

error: candidate is void ClassTemp::FuncA(2DVector& _M, 2DVector& _S, 2DVector& _MSI)

I searched on net and found that this is related with _ , but previously I successfully compiled this code with netbeans IDE 7.4. Any help will be appreciated.

EDIT:

I am compiling with arm-linux-androideabi-g++ compiler.

Answer 1

In C and C++, names starting with an underscore followed by a capital letter (for example, _M ) are reserved for the language implementation. They could be #define d macros or names used for internal language implementation classes and functions. Therefore, you're not supposed to use them in your own code, since otherwise you might run into bizarre issues. I suspect that that's the issue here.

Try renaming your variable to either use a lower-case m or by dropping the underscore. (As a heads-up, the same rule applies to names starting with two underscores, so don't try adding another underscore on the front. ^_^)

Hope this helps!