warning im MPL source

[anonymous]

I get warning in Visual C++ 10, 32 bit mode (strangely, 64 bit mode is warning free):

p:\app\3pp\boost\mpl\print.hpp(51): warning C4308: negative integral constant converted to unsigned type

It is line:

enum { n = sizeof(T) + -1 };

Changing it into:

enum { n = sizeof(T) - 1 };

got rid the warning.

[Alexander Lobov <alexanderlobov@…>]

Patch for trunk svn version

[Alexander Lobov <alexanderlobov@…>]

Why not

enum { n = sizeof(T) + 1 };

?

I've attached patch for this version.

[surfersparadise85-sonstiges@…]

Why was this not committed to the base? I still get the same error with boost 1.53 unless I change the line as denoted above.

[anonymous]

Just encountered this in 1.54 why not fixed yet ?

[Steven Watanabe]

This is not a bug. mpl::print is supposed to generate a warning. Check the template instantiation backtrace to find the reason for the warning.