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c++ Programming Glossary: preallocatehttp://stackoverflow.com/questions/14781264/how-to-self-copy-a-vector m a b auto n m keep initial value safe m.reserve 3 m.size preallocate to avoid consecutive allocations m.insert m.end n.begin n.end..
Should I preallocate std::stringstream? http://stackoverflow.com/questions/1941064/should-i-preallocate-stdstringstream I preallocate std stringstream I use std stringstream extensively to construct..
Best way to concatenate two vectors? http://stackoverflow.com/questions/3177241/best-way-to-concatenate-two-vectors share improve this question AB.reserve A.size B.size preallocate memory AB.insert AB.end A.begin A.end AB.insert AB.end B.begin..
how to pre-allocate memory for a std::string object? http://stackoverflow.com/questions/3303527/how-to-pre-allocate-memory-for-a-stdstring-object I need to copy a file into a string. I need someway to preallocate memory for that string object and a way to directly read the..
Do STL iterators guarantee validity after collection was changed? http://stackoverflow.com/questions/3329956/do-stl-iterators-guarantee-validity-after-collection-was-changed iterators from being invalidated if you use reserve to preallocate as much memory as the vector will ever use and if all insertions..
How do 'malloc' and 'new' work? How are they different (implementation wise)? [duplicate] http://stackoverflow.com/questions/365887/how-do-malloc-and-new-work-how-are-they-different-implementation-wise object at a given address. Standard containers use that to preallocate space but only create objects when needed later. Code the following..
About constructors/destructors and new/delete operators in C++ for custom objects http://stackoverflow.com/questions/392455/about-constructors-destructors-and-new-delete-operators-in-c-for-custom-object custom memory allocation strategy. For example you could preallocate memory and then take from that pool instead of allocating everytime..
“Proper” way to store binary data with C++/STL http://stackoverflow.com/questions/441203/proper-way-to-store-binary-data-with-c-stl downside is resizing is not terribly efficient resize or preallocate prudently and deletion from the front of the array will also..
How is dynamic memory managed in std::vector? http://stackoverflow.com/questions/672352/how-is-dynamic-memory-managed-in-stdvector and constructing object into that memory apart so it can preallocate memory but not yet call constructors. During reallocate the..
Choice between vector::resize() and vector::reserve() http://stackoverflow.com/questions/7397768/choice-between-vectorresize-and-vectorreserve and realize that in your case the correct answer is dont't preallocate manually. Just keep inserting the elements at the end as you..
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