c2064 problem-- namespace issue??

[Jon]

Hello all,

Basic question. I have a vector/matrix class I'm building, and I seem
to be getting errors such as this:

..\otherFileUsingVectorMatrixClass.cpp(182) : error C2064: term does
not evaluate to a function

the specs are such:

vec3f.h:
Vec3f
{
...
public:
...

// calculate dot product
friend float dot( const Vec3f&, const Vec3f& );
};
-------------
vec3f.cpp:
float dot( const Vec3f &a, const Vec3f &b )
{ return a[0]*b[0] + ...; }
-------------
vecMatClass.h

#include "vec2f.h"
#include "vec3f.h"
#include "vec4f.h"
#include "mat3f.h"
#include "mat4f.h"
-------------
someOtherFileUsingVectorMatrixClass.cpp:

#include "vecMatClass.h"

void Class::foo()
{
Vec3f a( 2,3,4 ), b( 5,3,2 );
const float dotP = dot( a, b );
}




Am I missing something? I'm using MSVC++ 6 and its compiler. I tried
to look up namespaces and such, and saw really old posts saying the
compiler had trouble recognizing functions in namespaces, or something
along those lines.

For a large program, is it ok to "pollute" the global namespace with
such functions as dot() (and there are 3 versions of it, for Vec2f,
Vec3f, and Vec4f)?


Thank you,
Jon

 

[Jonathan Mcdougall]

Hello all,

Basic question. I have a vector/matrix class I'm building, and I seem
to be getting errors such as this:

.\otherFileUsingVectorMatrixClass.cpp(182) : error C2064: term does
not evaluate to a function

What is this line?

the specs are such:

vec3f.h:
Vec3f

What is that?

{
...
public:
...

// calculate dot product
friend float dot( const Vec3f&, const Vec3f& );
};

vec3f.cpp:
float dot( const Vec3f &a, const Vec3f &b )
{ return a[0]*b[0] + ...; }

vecMatClass.h

#include "vec2f.h"
#include "vec3f.h"
#include "vec4f.h"
#include "mat3f.h"
#include "mat4f.h"

What are these?

-------------
someOtherFileUsingVectorMatrixClass.cpp:

#include "vecMatClass.h"

void Class::foo()

What is that ?

{
Vec3f a( 2,3,4 ), b( 5,3,2 );
const float dotP = dot( a, b );
}




Am I missing something?

Yes, you should post compilable code, not just try to rewrite it.

For a large program, is it ok to "pollute" the global namespace with
such functions as dot() (and there are 3 versions of it, for Vec2f,
Vec3f, and Vec4f)?

afaik, there was no namespaces in your program.


Jonathan