constexpr Archives - IT Nursery

Undefined reference to static constexpr char[]

I want to have a static const char array in my class. GCC complained and told me I should use constexpr, although now ...

May 26, 2022
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Is it possible to use std::string in a constexpr?

Using C++11, Ubuntu 14.04, GCC default toolchain. This code fails: constexpr std::string constString = "constString"; error: the type ‘const string {aka const std::basic_string}’ ...

May 23, 2022
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Does static constexpr variable inside a function make sense?

If I have a variable inside a function (say, a large array), does it make sense to declare it both static and constexpr? ...

May 22, 2022
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When should you use constexpr capability in C++11?

It seems to me that having a “function that always returns 5” is breaking or diluting the meaning of “calling a function”. There ...

May 10, 2022
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const vs constexpr on variables

Is there a difference between the following definitions? const double PI = 3.141592653589793; constexpr double PI = 3.141592653589793; If not, which style is ...

May 8, 2022
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What’s the difference between constexpr and const?

What’s the difference between constexpr and const? When can I use only one of them? When can I use both and how should ...

April 23, 2022
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