What is the difference between: vector<int> const& v and const vector<int> &v as parameters

Yup this is what I thought, but in cppcon, there is talk that one can't call vector<int>::begin() on vector<int> const &, So how did T const & make T const? 🧐

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06.02.2022

Ghasem Ramezani

Brian
Yup this is what I thought, but in cppcon, there i...

std::vector<int> const& and const std::vector<int> & is the same.

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06.02.2022

Brian Автор вопроса

Ghasem Ramezani
std::vector<int> const& and const std::vector<int>...

How though?

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06.02.2022

Pavel

No difference in this case, bacause it's a reference.

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06.02.2022

Brian Автор вопроса

Pavel
No difference in this case, bacause it's a referen...

So in pointers is the only time it applies?

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06.02.2022

Manav | avoid unnecessary messaging me

because reference can't change where they "point" to

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06.02.2022

Brian Автор вопроса

Manav | avoid unnecessary messaging me
because reference can't change where they "point" ...

😂 then what's the fucking point of a T const & ?

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06.02.2022

Ghasem Ramezani

Brian
😂 then what's the fucking point of a T const & ?

"More Readability" for some people.

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06.02.2022

Pavel

Brian
😂 then what's the fucking point of a T const & ?

Someone once decided, let's not decide for people where they want to put const :D

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06.02.2022

Ghasem Ramezani · Accepted Answer

Ghasem Ramezani

https://isocpp.org/wiki/faq/const-correctness

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06.02.2022

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What is the difference between: vector<int> const& v and const vector<int> &v as parameters

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