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Concept behind these four lines of tricky C code
Why does this code give the output C++Sucks ? What is the concept behind it?
9 Answers
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Why does C# disallow readonly local variables?
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-1 In C++ there's no machine code support for const (which in C++ is more like C# readonly than like C# const, although it can play both roles). Yet C++ supports const for local automatic variable. Hence the lack of CLR support for...
Generate random numbers following a normal distribution in C/C++
...n I easily generate random numbers following a normal distribution in C or C++?
18 Answers
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What happens if I define a 0-size array in C/C++?
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FYI, as a general rule, the (C or C++) standards only state what compilers must allow, but not what they must disallow. In some cases, they will state that the compiler should issue a "diagnostic" but that's about as specific as they get. The rest is left t...
How can I pass a member function where a free function is expected?
... an object from the void* and then calls the member function.
In a proper C++ interface you might want to have a look at having your function take templated argument for function objects to use arbitrary class types. If using a templated interface is undesirable you should use something like std::f...
Why are Python's 'private' methods not actually private?
...on, most OOP languages don't support truly private members. For example in C++ you have raw access to memory and in C# trusted code can use private reflection.
– CodesInChaos
Jul 13 '16 at 10:40
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What are the most common naming conventions in C?
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Well firstly C doesn't have public/private/virtual functions. That's C++ and it has different conventions. In C typically you have:
Constants in ALL_CAPS
Underscores to delimit words in structs or function names, hardly ever do you see camel case in C;
structs, typedefs, unions, members (of ...
Most efficient way to remove special characters from string
...ogram() {
_lookup = new bool[65536];
for (char c = '0'; c <= '9'; c++) _lookup[c] = true;
for (char c = 'A'; c <= 'Z'; c++) _lookup[c] = true;
for (char c = 'a'; c <= 'z'; c++) _lookup[c] = true;
_lookup['.'] = true;
_lookup['_'] = true;
}
public static string RemoveSpeci...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... anything can happen, and discussing why does it happen under the rules of C++ doesn't make sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result is not mathematically defined or not in the range of
representable values for its type, the behavior is undefin...
What is string_view?
string_view was a proposed feature within the C++ Library Fundamentals TS( N3921 ) added to C++17
1 Answer
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