Init local array with zeros in C++

Question

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C and C++ : Partial initialization of automatic structure

I'm looking for a fast way to init local array with zeros. (By "Fast", I mean "Fast to type.") When I do the following:

HANDLE hHandles[32] = {0};

does it zero out the first element or all 32?

You don't even need to type the zero. You can just type: `HANDLE hHandles[32] = {};` — Benjamin Lindley, Nov 06 '12 at 03:43
@texasbruce: That wouldn't tell you anything particularly useful with regards to what behavior is mandated by the C++ standard. — Benjamin Lindley, Nov 06 '12 at 03:59

score 4 · Accepted Answer · answered Nov 06 '12 at 03:26

4

It initializes all the 32 elements to zero.

answered Nov 06 '12 at 03:26

Mahesh

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Thanks. I just needed to confirm. – c00000fd Nov 06 '12 at 03:27

score 1 · Answer 2 · edited May 23 '17 at 12:18

1

See this surprisingly popular answer for details/alternatives. The difference between C and C++ seems to be that in C++ {} will do zero-initialization as well.

edited May 23 '17 at 12:18

Community

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answered Nov 06 '12 at 03:48

aib

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Init local array with zeros in C++

2 Answers2