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stl

Is the order of iterating through std::map known (and guaranteed by the standard)?

by IT Nursery

What I mean is – we know that the std::map‘s elements are sorted according to the keys. So, let’s say the keys are … Read more

Tags c, dictionary, standards, stl

Advantages of std::for_each over for loop

by IT Nursery

Are there any advantages of std::for_each over for loop? To me, std::for_each only seems to hinder the readability of code. Why do then … Read more

Tags c, coding-style, foreach, stl

How do I reverse a C++ vector?

by IT Nursery

Is there a built-in vector function in C++ to reverse a vector in place? Or do you just have to do it manually? … Read more

Tags c, std, stl, vector

Why does std::list::reverse have O(n) complexity?

by IT Nursery

Why does the reverse function for the std::list class in the C++ standard library have linear runtime? I would think that for doubly-linked … Read more

Tags c, c++11, linked-list, stl

maximum value of int

by IT Nursery

Is there any code to find the maximum value of integer (accordingly to the compiler) in C/C++ like Integer.MaxValue function in java? 8 … Read more

Tags c, limits, numeric-limits, stl

STL or Qt containers?

by IT Nursery

What are the pros and cons of using Qt containers (QMap, QVector, etc.) over their STL equivalent? I can see one reason to … Read more

Tags c, qt, stl

How do I clear the std::queue efficiently?

by IT Nursery

I am using std::queue for implementing JobQueue class. ( Basically this class process each job in FIFO manner). In one scenario, I want … Read more

Tags c, data-structures, queue, stl

When vectors are allocated, do they use memory on the heap or the stack?

by IT Nursery

Are all of the following statements true? vector<Type> vect; //allocates vect on stack and each of the Type (using std::allocator) also will be … Read more

Tags c, heap-memory, stack-memory, stl, vector

C++ Double Address Operator? (&&)

by IT Nursery

I’m reading STL source code and I have no idea what && address operator is supposed to do. Here is a code example … Read more

Tags c, memory-address, operator-keyword, stl

Throwing the fattest people off of an overloaded airplane.

by IT Nursery

Let’s say you’ve got an airplane, and it is low on fuel. Unless the plane drops 3000 pounds of passenger weight, it will … Read more

Tags algorithm, c, sorting, stl
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