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Quote: it may be cheaper and simpler to copy a return value than to allocate and deallocate an object on free store
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memory management by garbage collection
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This 'operator+()' [on matrices] accesses the operands of + … [but it requires a memory allocation]. … Copying the return value is often cheaper (in … store. It is also much simpler to program. … Google-1 Google-2
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Topic: memory management by garbage collection (113 items)