What are the best practices for using std::vector in C++11?
An example of an AI chatbot conversation about best practices for std::vector in C++11.
What are the best practices for using std::vector in C++11?
Some best practices include using emplace_back for efficiency, reserving space to avoid reallocations, and using range-based for loops.
Can you explain why reserving space is important?
Reserving space helps to minimize reallocations, which can be costly in terms of performance, especially in large vectors.
What is emplace_back and how does it differ from push_back?
emplace_back constructs an object in place, avoiding a copy, while push_back requires an object to be created first.
Are there any performance considerations I should be aware of?
Yes, consider the overhead of copying elements and the cost of reallocations. Use reserve and emplace_back to optimize.
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