Re: [Boost-users] Compile under 32bits but not under 64bits

Hi Juanma, On Thu, Mar 18, 2010 at 3:14 PM, Juanma Font wrote:

Hello ¡¡¡

 Probed with boost 1.38 and 1.40 on linux ubuntu karmic

  Example: check64.cpp

--------------- #include "check64.hpp"

int main()

{ point2<int> png_size1(3,4); point2<int> png_size2;

wxMessageBox( wxT("Reading png dimensions prueba.png "), wxT("Hello") );

// ok, compile into 32bits and 64bits png_size2=png_size1;

// ok, compile into 32bits and 64bits png_read_dimensions( "prueba.png" );

//ERROR, THIS ONLY COMPILE WITH 32bits png_size1 = png_read_dimensions( "prueba.png" );

return 0; }

Can you use ptrdiff_t instead of int? If not you might have to define a custom convert function since png_read_dimensions() returns point2. A fix is simple but you might be satisfied with ptrdiff_t. Regards, Christian