I have a csv DictReader object (using Python 3.1), but I would like to know the number of lines/rows contained in the reader before I iterate through it.Something like as fol开发者_开发技巧lows...
I have 3 classes, 2 inheriting from the other like so: class A { public: virtual void foo() {cout << \"I am A!\" << endl;}
After another question about iterators I\'m having some doubts about cu开发者_运维技巧stom containers.In my container, iterator is a subclass of const_iterator, so that I get conversion from non-const
I have question with this same title here but now as I\'ll present in code below this seems to behave i开发者_运维问答n the opposite way to the way explained to me in my first question with the same t
I have a graph with custom properties to the verti开发者_如何学Cces and edges. I now want to create a copy of this graph, but I don\'t want the vertices to be as complex as in the original. By this I
I\'d like get far next value for STL list iterator but it doesn\'t implement operator+, vector has it though. Why and how can I get the value where I want?
I\'m working on a program that\'s supposed to represent a graph. My issue is in my printAdjacencyList function. Basically, I have a Graph ADT that has a member variable \"nodes\", which is a map of th
I h开发者_如何学JAVAave this destructor that create error at runtime \"vector iterator not dereferencable\".
This question already has answers here: Is there anything in Objective-C similar to C# yield return (2 answers)
How can i loop thru a stl::List and store the value of one of the objects for use later in the funct开发者_运维百科ion?
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