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c++ Programming Glossary: allocatingC++ Vector of Pointers to Objects http://stackoverflow.com/questions/1361139/c-vector-of-pointers-to-objects I'll be deriving from the Enemy class and then dynamically allocating memory for the derived class like this enemies.push_back new..
How is std::string implemented? http://stackoverflow.com/questions/1466073/how-is-stdstring-implemented use that area to hold the string instead of dynamically allocating a buffer Also Herb Sutter's More Exceptional C has an appendix..
C++ Which is faster: Stack allocation or Heap allocation http://stackoverflow.com/questions/161053/c-which-is-faster-stack-allocation-or-heap-allocation to stack allocate things where I could instead of heap allocating them. He was talking to me and watching over my shoulder and.. both allocation finding a hole of the proper size and de allocating collapsing holes to reduce fragmentation as many standard library..
Copy constructor and = operator overload in C++: is a common function possible? http://stackoverflow.com/questions/1734628/copy-constructor-and-operator-overload-in-c-is-a-common-function-possible has to allocate a copy of the new resources before de allocating the assignee's old resources so that if an exception occurs.. assignee's old resources so that if an exception occurs allocating the new resources the old state can still be returned to. All..
Reduce flicker with GDI+ and C++ http://stackoverflow.com/questions/197948/reduce-flicker-with-gdi-and-c a dynamically allocated bitmap in your view object re allocating it as needed to match the size of your view. Note that while..
What uses are there for “placement new”? http://stackoverflow.com/questions/222557/what-uses-are-there-for-placement-new construct an object multiple times. If you need to keep re allocating it might be more efficient to allocate more than you need even..
Dynamically allocating an array of objects http://stackoverflow.com/questions/255612/dynamically-allocating-an-array-of-objects allocating an array of objects This is kind of a beginners question but..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom and how it optimizes copy and swap idiom C dynamically allocating an array of objects c copy constructor assignment operator.. efficient it merely swaps pointers and sizes rather than allocating and copying entire arrays. Aside from this bonus in functionality..
Looking for C++ STL-like vector class but using stack storage http://stackoverflow.com/questions/354442/looking-for-c-stl-like-vector-class-but-using-stack-storage viewvc chrome trunk src base stack_container.h It works by allocating a buffer where you say how big it is. You create the container..
std::vector is so much slower than plain arrays? http://stackoverflow.com/questions/3664272/stdvector-is-so-much-slower-than-plain-arrays once. Note when you resize the vector you are not only allocating the memory but also running through the vector and calling the..
When and why will an OS initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete? http://stackoverflow.com/questions/370195/when-and-why-will-an-os-initialise-memory-to-0xcd-0xdd-etc-on-malloc-free-new it is good to initialise memory to a known pattern when allocating it and certain patterns will trigger interrupts in Win32 which..
http://stackoverflow.com/questions/3770457/what-is-memory-fragmentation . Tactics to prevent memory fragmentation in C work by allocating objects from different areas according to their size and or..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c and stack Could I write an entire application without allocating variables in the heap I heard that others languages incorporate.. the create box button . The proper response may require allocating a new object a new Box object that should stick around long..
How to solve Memory Fragmentation http://stackoverflow.com/questions/60871/how-to-solve-memory-fragmentation which is in effect the wasted space you have by allocating more memory in the block than you need. Additionally with a..
Why is one loop so much slower than two loops? http://stackoverflow.com/questions/8547778/why-is-one-loop-so-much-slower-than-two-loops way conflicts. If I've guessed correctly on how you are allocating your arrays they are likely to be aligned to the page line ... than say 2 ways. EDIT It does in fact look like you are allocating all the arrays separately. Usually when such large allocations..
Why should I prefer to use member initialization list? http://stackoverflow.com/questions/926752/why-should-i-prefer-to-use-member-initialization-list if you will that A 's default constructor did more such as allocating memory or opening files. You wouldn't want to do that unnecessarily...
program crash while using char* http://stackoverflow.com/questions/12482465/program-crash-while-using-char is pointing to a read only location and you write to it . Allocating area for the pointer makes it point to the green area enlarging..
Allocating more memory than there exists using malloc http://stackoverflow.com/questions/19750796/allocating-more-memory-than-there-exists-using-malloc more memory than there exists using malloc This code snipping..
What is the difference between new/delete and malloc/free? http://stackoverflow.com/questions/240212/what-is-the-difference-between-new-delete-and-malloc-free NULL on failure Must specify the size required in bytes. Allocating array requires manual calculation of space. Reallocating larger..
Good C++ array class for dealing with large arrays of data in a fast and memory efficient way? http://stackoverflow.com/questions/2472944/good-c-array-class-for-dealing-with-large-arrays-of-data-in-a-fast-and-memory Time to write my own big array class I reckon. Second Edit Allocating smaller amounts yielded 1.875GB immediately using the following..
Unmangling the result of std::type_info::name http://stackoverflow.com/questions/281818/unmangling-the-result-of-stdtype-infoname abi __cxa_demangle assumes it to be allocated on the heap. Allocating the buffer on the stack is a bug from the gnu doc If output_buffer..
C++ format macro / inline ostringstream http://stackoverflow.com/questions/303562/c-format-macro-inline-ostringstream Convert it back to an ostringstream . And invoke str . Allocating ostringstream . Converting There are several choices. Others..
When to use “new” and when not to, in C++? [duplicate] http://stackoverflow.com/questions/679571/when-to-use-new-and-when-not-to-in-c Foo Point p p will be automatically destroyed when foo is. Allocating and freeing objects with the use of 'new' is far more expensive..
How can I detect only deleted, changed, and created files on a volume? http://stackoverflow.com/questions/7421440/how-can-i-detect-only-deleted-changed-and-created-files-on-a-volume 0 DWORD starttick endtick starttick GetTickCount printf Allocating memory. n buffer VirtualAlloc NULL BUFFER_SIZE MEM_RESERVE MEM_COMMIT..
Allocating struct with variable length array member http://stackoverflow.com/questions/7641698/allocating-struct-with-variable-length-array-member struct with variable length array member I know I can do new..
how to return char array in c++? http://stackoverflow.com/questions/7769998/how-to-return-char-array-in-c be destroyed on exit. That's why you get the warning. Allocating it on the heap prevents this but you will have to be careful..
How do I allocate a std::string on the stack using glibc's string implementation? http://stackoverflow.com/questions/783944/how-do-i-allocate-a-stdstring-on-the-stack-using-glibcs-string-implementation that can dynamically grow to unlimited size in that case. Allocating from the stack is faster in many cases than allocating from..
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