C++ Clear And Resize To Same Size By One Command Wx75x7S
Text snippet: I assume you mean resize(0) instead of setsize , and calling that instead of clear() , and that you're talking about std::vector .
Text snippet: The C++ vector resize method is a built-in STL function (capacity function) used to manipulate a vector's size by inserting or deleting elements ...
Text snippet: The function alters the container's content in actual by inserting or deleting the elements from it. It happens so, ... 1.Size of the vector ...
Text snippet: Resizes the container so that it contains n elements. If n is smaller than the current container size, the content is reduced to its first n elements, ...
Text snippet: Description. The C++ function std::vector::resize() changes the size of vector. If n is smaller than current size then extra elements are destroyed.
Text snippet: The clear() function is used to remove all the elements of the vector container, thus making it size 0. ... Parameters: No parameters are passed.
Text snippet: A std::vector with a capacity of 5 has allocated space for 5 elements. If the vector contains 2 elements in active use, the length (size) of the ...
Text snippet: Resizes the string to a length of n characters. If n is smaller than the current string length, the current value is shortened to its first n character, ...
Text snippet: I know about reserve and I know that resize only change the size if it's smaller and not the capacity. As I said, resize "works" for simple ...
Text snippet: Resizes the container to contain count elements, does nothing if count == size(). If the current size is greater than count, the container ...
In C++, you can achieve the equivalent of clearing and resizing a vector to the same size using the resize function. Here's how you can do it:
std::vector<int> myVector;
// ... populate myVector ...
myVector.resize(myVector.size()); // This resizes the vector to its current size, effectively clearing it and maintaining the same size.
In this example, myVector.resize(myVector.size()) will effectively clear the elements in the vector and resize it to the current size, achieving the desired result.
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