Questions tagged [reference-wrapper]
107 questions
-2
votes
2 answers
Reference_wrapper: Push_back works but not assigning
In the following code, push_back() a std::ref into a std::vector> works well however, assigning a std::ref to a reference_wrapper does not work. Why?
#include
#include
#include
using…
Shibli
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-3
votes
2 answers
Return value of non-initialized reference_wrapper
Where does reference_wrapper point to when I resize() the vector below? Is this an undefined behavior? What should I do for safety?
std::vector < std::reference_wrapper > vec;
vec.resize(10);
Shibli
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