This code crashes VisualC++2005 express when cmath is not included:
Any computation before or after the cos() call crashes it but removing it wont.Code:static void GetTimedAlpha()
{
int(cos(1) + 1);
}
Can anyone confirm if this works in 2008?
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This code crashes VisualC++2005 express when cmath is not included:
Any computation before or after the cos() call crashes it but removing it wont.Code:static void GetTimedAlpha()
{
int(cos(1) + 1);
}
Can anyone confirm if this works in 2008?
I can confirm the crash in VS2005, but I'm just a few days away of having VS2008 Express installed. The static part isn't needed to produce the crash if you simply make it a global function, and the function names make no difference.Same crash.Code:void foo()
{
int(bar(1) + 1);
}
That's a rather startling bug. I verified that it crashes VS2005.
I tried VS2008 and it does not crash. Instead I get the expected:
I bet the bug has something to do with the compiler not knowing whether cos(1) is a function invokation or a constructor call to create a temporary. Somehow, making this part of a compound expression makes it gag and blow up.Quote:
1>c:\othercode\crashvs2005\crash\crash.cpp(3) : error C3861: 'cos': identifier not found
The equivalent in C does not crash:
Terrible, terrible bug.Code:int foo()
{
(int)(cos(1)+1);
}
Also, I notice that using (int) instead of int() makes the crash go away in C++.
VS2005 is a broken compiler. Upgrade.
Because VS2008 is certainly free of bugs?Quote:
Originally Posted by Sebastiani
It's usually a mistake to change a working system. In a real environment, a change like upgrading the compiler might take months of testing before being put into production.
This bug seems pretty awful, but it's a weird boundary case.
I don't know about that, but I have heard that it's much more stable. Besides that, VS2005 struggles with standard compliance, and has problems processing C++ templates, which appear to have been (mostly) fixed with VS2008.Quote:
Originally Posted by brewbuck