error C2220: warning treated as error - no 'object' file generated

Question

I have below class

class Cdata12Mnt
{
public:
    char IOBname[ID1_IOB_PIOTSUP-ID1_IOB_TOP][BOADNAM_MAX + 4];
    char ExIOBname[ID1_MAX_INF-ID1_EXIOB_U1TOP]         


        

Answer 1

The error says that a warning was treated as an error. Therefore your problem is a warning message! Check them and fix these.

In case you don't know how to find them: Open the Error List (View > Error List) and click on Warning.

Answer 2

This warning is about unsafe use of strcpy. Try IOBname[ii]='\0'; instead.

Answer 3

Go to project properties -> configurations properties -> C/C++ -> treats warning as error -> No (/WX-).

Answer 4

As a side-note, you can enable/disable individual warnings using #pragma. You can have a look at the documentation here

From the documentation:

// pragma_warning.cpp
// compile with: /W1
#pragma warning(disable:4700)
void Test() {
   int x;
   int y = x;   // no C4700 here
   #pragma warning(default:4700)   // C4700 enabled after Test ends
}

int main() {
   int x;
   int y = x;   // C4700
}

Answer 5

This error message is very confusing. I just fixed the other 'warnings' in my project and I really had only one (simple one):

warning C4101: 'i': unreferenced local variable

After I commented this unused i, and compiled it, the other error went away.