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How to get number of rows using SqlDataReader in C#
...defined except for one that states to do a while loop with Read() method and increment a counter.
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
I'm reading some lecture notes of my C++ lecturer and he wrote the following:
23 Answers
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How to synchronize a static variable among threads running different instances of a class in Java?
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The reason #3 is the best is that any random bit of code could synchronize on Test.class and potentially spoil your day. Also, class initialization runs with a lock on the class held, so if you've got crazy class initializers you can give yourself headaches. vol...
How to get string width on Android?
... edited Oct 6 '16 at 22:03
Andrii Abramov
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answered Sep 2 '10 at 19:05
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Calling constructors in c++ without new
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I guess these types of actions are optimized and therefore, do not significantly differ in performance aspects.
– M. Williams
Apr 27 '10 at 16:14
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What is tail call optimization?
... space as (fact 3). This is not the case with the non-tail-recursive fact, and as such large values may cause a stack overflow.
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How to COUNT rows within EntityFramework without loading contents?
... Can you tell me why is it different with the SelectMany? I don't understand. I do it without SelectMany but it gets really slow because I have over 20 million records. I tried the answer from Yang Zhang and works great, just wanted to know what the SelectMany does.
– mikesof...
'size_t' vs 'container::size_type'
Is there is a difference between size_t and container::size_type ?
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Proper stack and heap usage in C++?
I've been programming for a while but It's been mostly Java and C#. I've never actually had to manage memory on my own. I recently began programming in C++ and I'm a little confused as to when I should store things on the stack and when to store them on the heap.
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Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
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