"can't convert parameter" error

[Ian Lazarus]

// why is the error message being generated?
// Microsoft Visual C/C++ 5.0

class Bar
{
public:
void Log(const char* p){ }
};

class Foo : public Bar
{
public:
void Log(int x){ }
};

int main()
{
Foo foo;
foo.Log("foo bar"); // error message below

return(0);
}

// error C2664: 'Log' : cannot convert parameter 1 from 'char [8]' to 'int'

 

[White Wolf]

// why is the error message being generated?
// Microsoft Visual C/C++ 5.0

class Bar
{
public:
void Log(const char* p){ }
};

class Foo : public Bar
{
public:

using Bar::Log;

void Log(int x){ }
};

int main()
{
Foo foo;
foo.Log("foo bar"); // error message below

return(0);
}

// error C2664: 'Log' : cannot convert parameter 1 from 'char [8]' to
'int'

Bar::Log hides Foo:Log as a name.

 

[White Wolf]

Bar::Log hides Foo:Log as a name.

Ehem, the other way around

 

[Oliver Fleischmann]

// why is the error message being generated?
// Microsoft Visual C/C++ 5.0

class Bar
{
public:
void Log(const char* p){ }
};

class Foo : public Bar
{
public:
void Log(int x){ }
};

int main()
{
Foo foo;
foo.Log("foo bar"); // error message below

return(0);
}

// error C2664: 'Log' : cannot convert parameter 1 from 'char [8]' to 'int'

Hi,

this error is created, because the "Log" method of your class "Foo"
takes an integer as parameter.
"Foo" inherets the Log function from Bar but you overwrite it in Foo
so it's parameter isn't a "const char *" anymore but your "int x".

Olli