So today i was learning about c++ lambda functions. and i have some doubts.
Q.1) See this
why the output is 2?
Q.2) another question
Spoiler
tell me
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Two Questions about c++ lambda functions. [Must Read]
So today i was learning about c++ lambda functions. and i have some doubts.
Q.1) See this
function<int(int,int)> sum = [&](int a, int b)
{
++a;
return a+b;
};
int a = 2, b = 3;
int s = sum(a, b);
cout << a << endl;// why it's 2 i have passed 'a' with refrence. how to pass it with refrence.
Q.2) another question
function<int(int)> sum = [&](int a)
{
// some code
cout << get(2); // how can i use the get function?
return something;
};
function<int(int)> get = [&](int v)
{
int b = sum(3);
return v;
};
tell me
Rev. | Язык | Кто | Когда | Δ | Комментарий | |
---|---|---|---|---|---|---|
en3 | Boring_Day | 2022-10-06 09:47:31 | 225 | |||
en2 | Boring_Day | 2022-10-06 06:58:39 | 38 | |||
en1 | Boring_Day | 2022-10-06 06:55:35 | 889 | Initial revision (published) |
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