Solving name-clash in cpp file of a class

Question

I would like to call the unscoped function "bar" from "somelib" within the "bar" method of Foo.

// .h
class Foo
{
    int bar();
};

// .cpp
#include "Foo.h"
#include <somelib> // contains unscooped function bar()

int Foo::bar()
{
    return bar(); // unwanted recursive function
}

One way to solve it is to make use of a helper function, such as "bar_helper"

// .cpp
#include "Foo.h"
#include <somelib> // contains unscooped function bar()

// unnamed namespace
namespace
{
    int bar_helper()
    {
        return bar(a);
    }
}

int Foo::bar()
{
    return bar_helper();
}

Can it be made more pretty?
Is there a better solution?

Some programmer dude · Accepted Answer · 2014-03-09 11:14:02Z

2

If the non-member bar function is in the global scope, you can use the scoping operator :::

int Foo::bar()
{
    return ::bar();
}

edited Mar 9, 2014 at 11:14

answered Mar 9, 2014 at 10:57

Some programmer dude

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Comments

juanchopanza · Accepted Answer · 2014-03-09 10:57:16Z

2

Be explicit about the scope, in this case, the global one:

return ::bar();
       ^^

answered Mar 9, 2014 at 10:57

juanchopanza

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1 Comment

Adelost Over a year ago

Thanks for the help! I had to choose Joachim's answer since I liked his explanation a tiny bit better, however I have to commend you for answering a few seconds earlier than him.

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