37 lines
650 B
C++
37 lines
650 B
C++
#include <iostream>
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#include <numeric>
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using std::cout;
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struct Foo{
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Foo(int s) :p(new int[s]), sz(s) {}
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~Foo() {delete[] p;}
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int* begin() {return p;}
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int* end() {return begin()+sz;}
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const int* begin() const {return p;}
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const int* end() const {return begin()+sz;}
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int* p;
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int sz;
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};
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void print(Foo f)
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{
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for(const auto& x : f) cout << x << " ";
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endl(cout);
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}
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void example1()
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{
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Foo f(10);
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std::iota(std::begin(f), std::end(f), 0);
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print(f);
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cout << "after first print\n";
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*f.begin()=123;
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cout << "printing again\n";
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print(f);
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cout << "done\n";
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}
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int main()
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{
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example1();
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}
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