Recent questions tagged Constants

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constants - How does mapM work with const functions in Haskell?

as I had been looking for ways to optimize a password cracker I had been making, I came across a much ... variations for the given letters? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - What is the difference between const and immutable in D?

What is the difference between the const and immutable type qualifiers in D? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - c++ function: pass non const argument to const reference parameter

suppose I have a function which accept const reference argument pass, int func(const int &i) { /* */ } int main ... expression is legal in c++? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - Java multiple arguments dot notation - Varargs

I've just acknowledged dot notation for method declaration with multiple arguments like this: public function getURLs( ... ) is this supported? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - What is the difference between "const" and "val"?

I have recently read about the const keyword, and I'm so confused! I can't find any difference between const ... anything else that I'm missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - is const (c++) optional?

according to some tutorials i read a while back, the "const" declaration makes a variable "constant" ie it ... const stuff? Thanks in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - How to change the constness of a variable in C++?

Following is my code const int i = 10; cout<<i<<" "; int *ip = (int*)&i; *ip = 20; cout<<i< ... what can be done to achieve my expected result. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - How does Clojure ^:const work?

I'm trying to understand what ^:const does in clojure. This is what the dev docs say. http://dev.clojure.org/ ... macro like (pi) and (e)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - What are C++ temporaries?

I was reading the constant chapter in Eckel and got mixed up in the part where Temporaries were explained . What I could get ... (f6()); } ///:~ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - Can a heap-allocated object be const in C++?

In C++ a stack-allocated object can be declared const: const Class object; after that trying to call a non ... UB? is also undefined behaviour? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - C++ style cast from unsigned char * to const char *

I have: unsigned char *foo(); std::string str; str.append(static_cast<const char*>(foo())); The error: invalid ... to cast here in C++ style? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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constants - c++ const member function that returns a const pointer.. But what type of const is the returned pointer?

I apologize if this has been asked, but how do I create a member function in c++ that returns a pointer in ... func(const int* const x) const; See Question&Answers more detail:os...