error: expected unqualified-id before numeric constant

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Hi,

I am defining all constants in a .h file.

Earlier it were

C++

#defines

. I am replacing it with

C++

const

.

Header file looks like

C++

namespace preprocessing
{
    namespace generaldef
     {
          const int BASE = 0;
     }
}

for this code i am getting the following error

error: expected unqualified-id before numeric constant|

for the line

C++

const int BASE = 0;

Posted 8-Nov-12 22:15pm

PrafullaVedante

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markkuk 9-Nov-12 4:23am

Do you have a #define for BASE left somewhere in your code?

PrafullaVedante 9-Nov-12 4:37am

Yupp .... its defined in another header file. Thanks ...

You got it right on first shot ... :) After removing the #define Code is compiling fine now ..

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CPallini · Answer 1 · 2012-11-08T22:42:00

The following program:

C++

// foo.h
namespace preprocessing
{
    namespace generaldef
     {
          const int BASE = 0;
     }
}

C++

// foo.cpp
#include "foo.h"
#include <iostream>

using namespace std;
int main()
{
  cout << preprocessing::generaldef::BASE << endl;
}

Compiles (and runs!) fine with gcc version 4.4.5.

By the way, why don't you use an enum?