Problem with default function argument on linux

[none]

In a template class I declare a function:

bool LoadFile(std::string filename, bool multi=false, bool endian=false);

and in the .cpp file I define it:


template< typename M, unsigned int Dimension>
bool
MyTestClass<M,Dimension>::LoadFile(std::string filename, bool multi = false, bool endian = false) {

....

}


But when I compile I get the error:

error: default argument given for parameter 3 of ‘bool MyTestClass<M,
Dimension>::LoadFile(std::string, bool, bool)’


It compiles fine on windows with visual studio 2008, but why does it not compile on linux?

 

[none]

In a template class I declare a function:

bool LoadFile(std::string filename, bool multi=false, bool endian=false);

and in the .cpp file I define it:


template< typename M, unsigned int Dimension>
bool
MyTestClass<M,Dimension>::LoadFile(std::string filename, bool multi =
false, bool endian = false) {

...

}


But when I compile I get the error:

error: default argument given for parameter 3 of ‘bool MyTestClass<M,
Dimension>::LoadFile(std::string, bool, bool)’


It compiles fine on windows with visual studio 2008, but why does it not
compile on linux?

Arg default values should only be specified in the declaration, problem solved.

 

[Alf P. Steinbach]

* none, on 30.05.2010 20:55:

Arg default values should only be specified in the declaration, problem
solved.

You might also want to take a look at FAQ item "Why can't I separate the
definition of my templates class from its declaration and put it inside a .cpp
file?", currently available at e.g. <url:
http://www.parashift.com/c++-faq-lite/templates.html#faq-35.12>.


Cheers & hth.,

- Alf

 

[Saeed Amrollahi]

In a template class I declare a function:

   bool LoadFile(std::string filename, bool multi=false, bool endian=false);

and in the .cpp file I define it:

template< typename M, unsigned int Dimension>
bool
MyTestClass<M,Dimension>::LoadFile(std::string filename, bool multi = false, bool endian = false) {

...

}

But when I compile I get the error:

error: default argument given for parameter 3 of ‘bool MyTestClass<M,
Dimension>::LoadFile(std::string, bool, bool)’

It compiles fine on windows with visual studio 2008, but why does it not compile on linux?

Hi

I believe, it is a general rule:
The default argument should be specified for a parameter in either
declaration or definition.

My two cents

Regards,
-- Saeed Amrollahi

 

[Saeed Amrollahi]

In a template class I declare a function:

   bool LoadFile(std::string filename, bool multi=false, bool endian=false);

and in the .cpp file I define it:

template< typename M, unsigned int Dimension>
bool
MyTestClass<M,Dimension>::LoadFile(std::string filename, bool multi = false, bool endian = false) {

...

}

But when I compile I get the error:

error: default argument given for parameter 3 of ‘bool MyTestClass<M,
Dimension>::LoadFile(std::string, bool, bool)’

It compiles fine on windows with visual studio 2008, but why does it not compile on linux?

Hi
I believe, it is a general rule:
The default argument should be specified in either function
declaration or function definition.

My two cents,
-- Saeed Amrollahi

 

[Ian Collins]

Hi

I believe, it is a general rule:
The default argument should be specified for a parameter in either
declaration or definition.

Only in the definition if it is also the declaration.