c Archives - Page 232 of 235

Catch multiple exceptions at once?

It is discouraged to simply catch System.Exception. Instead, only the “known” exceptions should be caught. Now, this sometimes leads to unnecessary repetitive code, ...

April 10, 2022
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Deep cloning objects

I want to do something like: MyObject myObj = GetMyObj(); // Create and fill a new object MyObject newObj = myObj.Clone(); And then ...

April 10, 2022
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Do I cast the result of malloc?

In this question, someone suggested in a comment that I should not cast the result of malloc. i.e., I should do this: int ...

April 10, 2022
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What are the correct version numbers for C#?

What are the correct version numbers for C#? What came out when? Why can’t I find any answers about C# 3.5? This question ...

April 10, 2022
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What is the difference between #include and #include “filename”?

In the C and C++ programming languages, what is the difference between using angle brackets and using quotes in an include statement, as ...

April 10, 2022
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?

What are the proper uses of: static_cast dynamic_cast const_cast reinterpret_cast C-style cast (type)value Function-style cast type(value) How does one decide which to use ...

April 10, 2022
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How do you set, clear, and toggle a single bit?

How do you set, clear, and toggle a bit? 2 27 Setting a bit Use the bitwise OR operator (|) to set a ...

April 10, 2022
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How to iterate over a dictionary?

I’ve seen a few different ways to iterate over a dictionary in C#. Is there a standard way? 2 29 foreach(KeyValuePair<string, string> entry ...

April 10, 2022
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Why is “using namespace std;” considered bad practice?

I’ve been told by others that writing using namespace std; in code is wrong, and that I should use std::cout and std::cin directly ...

April 10, 2022
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Improve INSERT-per-second performance of SQLite

Optimizing SQLite is tricky. Bulk-insert performance of a C application can vary from 85 inserts per second to over 96,000 inserts per second! ...

April 10, 2022
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