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c++ Programming Glossary: manageWhat is a smart pointer and when should I use one? http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one A smart pointer is a class that wraps a bare C pointer to manage the lifetime of the object being pointed to. With bare C pointers..
Getting a FILE* from a std::fstream http://stackoverflow.com/questions/109449/getting-a-file-from-a-stdfstream use a FILE as part of its implementation. So even if you manage to extract file descriptor from the std fstream object and manually..
Why should exceptions be used conservatively? http://stackoverflow.com/questions/1744070/why-should-exceptions-be-used-conservatively operations kernel calls or other system API invocations to manage kernel system signal interfaces stack unwinding allocation of..
Is there a max array length limit in C++? http://stackoverflow.com/questions/216259/is-there-a-max-array-length-limit-in-c to construct the vector because an allocator is free to manage memory any way it wants. A very odd but nontheless conceivable..
http://stackoverflow.com/questions/3106110/what-is-move-semantics 1 data new char size memcpy data p size Since we chose to manage the memory ourselves we need to follow the rule of three . I..
What is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom this question Overview Why do we need it Any class that manages a resource a wrapper like a smart pointer needs to implement.. The goal Let's consider a concrete case. We want to manage in an otherwise useless class a dynamic array. We start with.. private std size_t mSize int mArray This class almost manages the array successfully but it needs operator to work correctly...
RAII and smart pointers in C++ http://stackoverflow.com/questions/395123/raii-and-smart-pointers-in-c finished with it. The downside is that the caller has to manage memory which adds extra complexity and might get it wrong leading..
http://stackoverflow.com/questions/408670/stack-static-and-heap-in-c crashing without requiring that you learn proper memory management pick something with a GC. Even if you know how to manage.. pick something with a GC. Even if you know how to manage memory well it will save you time which you can spend optimizing..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three those special member functions explicitly When our class manages a resource that is when an object of the class is responsible.. to make the following point Writing classes that manage resources is hard. Noncopyable resources Some resources cannot.. rule of three Sometimes you need to implement a class that manages a resource. Never manage multiple resources in a single class..
Proper stack and heap usage in C++? http://stackoverflow.com/questions/599308/proper-stack-and-heap-usage-in-c It's been mostly Java and C#. I've never actually had to manage memory on my own. I recently began programming in C and I'm.. on the heap. Is this correct or am I incorrect c memory management stack heap c faq share improve this question No the..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope local variable inaccessible outside its function c memory management local variables dangling share How can it be Isn't the.. you from entering a room with a stolen key. The hotel management is not required to remove your book. You didn't make a contract.. Compilers are in the business of generating code which manages the storage of the data manipulated by that program. There..
Why should `new` be used as little as possible? http://stackoverflow.com/questions/6500313/why-should-new-be-used-as-little-as-possible the answer feel free to clarify what was meant. c memory management new operator c faq share improve this question There.. called a destructor . This mechanism allows you to manage resources by aligning the lifetime of the resource with the.. its destructor. In this case you did not need to manually manage any resources and still get the benefits of the dynamic memory..
What XML parser should I use in C++? http://stackoverflow.com/questions/9387610/what-xml-parser-should-i-use-in-c refering to strings in place . This requires more memory management on your part you must keep that string alive while RapidXML.. Unicode or doesn't require so much user controlled memory management. Performance is still important but you want something a.. fires off events that you have to catch. You are forced to manage context state and so forth. Code that reads a SAX style API..
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