Re: VS2005SP1 compiler bug - default pointer argument in templated function

"Igor Tandetnik" <>
Wed, 12 Nov 2008 15:13:00 -0500
sdiverdi <> wrote:

This code produces a compiler error on VS2005 SP1 (in a new solution
with default settings, in main.cpp):

template < typename T > void myfunc ( T *ptr = ( T * )0 ) {}
template < > void myfunc< float > ( float *ptr ) {}
template < > void myfunc< double > ( double *ptr ) {}

int main()
 myfunc< float >();
 myfunc< double >(); // ERROR C2440 HERE

with the error message "error C2440: 'default argument' : cannot
convert from 'float *' to 'double *'"

Looks like a bug to me.

Any ideas on a workaround?

Perhaps something like this: remove all default arguments, add an

template < typename T > void myfunc () { myfunc<T>(NULL); }

With best wishes,
    Igor Tandetnik

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