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Favorite (Clever) Defensive Programming Best Practices [closed]
...though my current languages are Java and Objective-C (with a background in C++), feel free to answer in any language. Emphasis here would be on clever defensive techniques other than those that 70%+ of us here already know about. So now it is time to dig deep into your bag of tricks.
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What is the right way to check for a null string in Objective-C?
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I said null simply because of C++ habits, and if your code is calling methods on nil objects, chances are your code is broken. You'll find that calling methods on NULL/NIL (same concept) is generally a bad idea in any language. Just because obj-c lets you...
How to configure socket connect timeout
... are willing to wait for the connect to succeed.
I found this for Visual C++ and the explanation there also bends towards the select/poll mechanism I explained before.
In my experience, you cannot change connect timeout values per socket. You change it for all (by tuning OS parameters).
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Fastest way to reset every value of std::vector to 0
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UPDATE Using Nonius for benchmarks: clang3.6-libc++-c++1y-O3, gcc4.9-c++1y-O3 and gcc5-c++1y-O3 - TL;DR: assign is slower, except for small capacities on libc++. CODE coliru/paste
– sehe
Oct 8 '15 at 22:24
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Most common C# bitwise operations on enums
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C++ syntax, assuming bit 0 is LSB, assuming flags is unsigned long:
Check if Set:
flags & (1UL << (bit to test# - 1))
Check if not set:
invert test !(flag & (...))
Set:
flag |= (1UL << (bit to set#...
Can we make unsigned byte in Java
... excellent example to demonstrate why everyone should start learning C and C++ before moving to Java or C#
– Gianluca Ghettini
Jun 28 '15 at 19:42
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C# operator overload for `+=`?
...The question is specifically tagged with c# and dotnet tags. Obviously, in c++ for example, '+' and '+=' (and even '=') can be overloaded separately.
– Bojidar Stanchev
Jul 16 at 12:10
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Futures vs. Promises
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Not the answer you're looking for? Browse other questions tagged c++ c++11 promise future or ask your own question.
Can I hex edit a file in Visual Studio?
...Kevin's answer, with Visual Studio 2017 you need to have the Visual Studio C++ Core Features component installed.
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How to read a single character from the user?
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this is the best answer. adding a dependency to VS C++ library just for this functionality is crazy.
– FistOfFury
Dec 26 '17 at 14:54
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