The article here discusses various ways to convert an input string to a vector of bytes in C++. Table Of Contents Method 1: Using a For Loop Method 2: Using std::vector Constructor Method 3: Using std::transform method Method 4: Using std::copy() method Summary Method 1: Using a For Loop This program creates a string called […]
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In this article, we will discuss how to print a vector using std::cout in C++. By default we can directly pass a vector object to the cout in C++. As, ‘cout’ calls the operator<<() function of each passed object. So, we can overload a operator<< function of vector like this, It is a template function,
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In C++ the vector class provides a function at() to return the value at the given index position. Let us see the syntax of the function, Table Of Contents Syntax of vector::at() function Example of vector::at() vector::at() and out_of_range exception Update vector using vector::at() Summary Syntax of vector::at() function It accepts an index position “n”,
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In C++, the vector class provides a function pop_back(). It removes the last element from the calling vector object. Table Of Contents Syntax of vector::pop_back(): Example of vector::pop_back() function Calling vector::pop_back() function on empty vector Remove all elements from vector using vector::pop_back() Summary Syntax of vector::pop_back(): Parameters: None Return value: None It accepts no argument,
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In C++, the vector class provides a member function push_back(). It accepts an element as an argument, and adds that element to the end of the vector. Basically it increases the size of the vector by one. As per vector’s internal implementation, sometimes it might be possible the due to addition of an element at
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In C++, the vector class provides a function clear(). It removes all elements from the calling vector object. It will make the size of vector 0. Table Of Contents Syntax of vector::clear(): Examples of vector::clear() Example 1 Example 2 Summary Syntax of vector::clear(): Parameters: None Return value: None Examples of vector::clear() Let’s see some examples
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In this article, we will discuss different ways to convert a string to a byte array in C++. Table of Contents Method 1: Using STL ALgorithm transform() Method 2: Using memcpy() function Method 3: Using for-loop Summary Method 1: Using STL ALgorithm transform() Create a byte array of same length as number of characters in
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In this article, we will discuss how to convert a string to an integer in C++. Table Of Contents Method 1: Using istringstream Method 2: Using Boost Library’s lexical_cast<> Method 3: Using std::stoi() function Method 4: Using std::atoi() function Method 5: Using sscanf() Summary Method 1: Using istringstream Create a istringstream object, and initialize it
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In this article, we will discuss different ways to convert a std:;string object to list of characters in C++. Table Of Contents Method 1: Using list constructor Method 2: Using STL Algorithm copy() Method 3: Using for-loop Summary Method 1: Using list constructor In C++, the list class provides a constructor, which accepts a range
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In this article, we will discuss different ways to convert a string to a char array in C++. Table Of Contents Method 1: Using string::copy() Method 2: using strcpy() Summary Method 1: Using string::copy() Create an array of same length as string, and initialize it with null characters. Then use the copy() function of string
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