Re: [Valgrind-users] No "Use of uninitialised value" warning

[Dallman, J. <joh...@si...>]

> Now back to my problem. The original code has double instead of int (I
> just tried both types to be sure and forgot to change back) and on
MSVC
> std::swap() of uninitialised doubles triggers a floating point
> exception (if enabled) as MSVC uses the FPU.
> 
> I was really surprised that the code crashes on Windows as it runs
fine
> under valgrind on Linux.

This is a long-established quirk of Microsoft's compilers. They assume,
rather more deeply than most people, that floating point traps will be 
turned off. 

-- 
John Dallman
Parasolid Porting Engineer