question on valarray

[Milan]

Just a few lines:

1: valarray<int> t(0, 10);
2: for (int i = 0; i < 10; ++i)
3: t = i;
4: valarray<int> t2 = t[slice(0, 3, 1)];

Line 4 causes a core dump with g++. Why?

Besides, if I change line 4 to the following:
valarray<int> t2 = (valarray<int>) t[slice(0, 3, 1)];
It works with Visual C++ but not with g++ (Compilation error. I forgot what
the message was). Is there any way to fix it?

Thanks.

Regards,
Milan.

 

[tom_usenet]

Just a few lines:

1: valarray<int> t(0, 10);

2: for (int i = 0; i < 10; ++i)
3: t = i;
4: valarray<int> t2 = t[slice(0, 3, 1)];

Line 4 causes a core dump with g++. Why?

Compiler bug? The code is fine, and works for me on GCC 3.2.

Besides, if I change line 4 to the following:
valarray<int> t2 = (valarray<int>) t[slice(0, 3, 1)];

You shouldn't use C-style casts in C++ usually. In any case, the cast
isn't necessary.

It works with Visual C++ but not with g++ (Compilation error. I forgot what
the message was). Is there any way to fix it?

Upgrade? What version are you using?

Tom

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