std::string

This tutorial will discuss about unique ways to count number of characters in a string array in C++. Suppose we have a string array, like this, Now we want to count the total number of characters in this string array. For that, we need to iterate over all string objects in this array, and count […]

In this article, we will disucss different ways to find and replace any substring in a given string with another string in C++. Using a char array and pointer arithmetic: We will be using the following functions in the program: memcpy(): The memcpy() is a C-style function that copies a specified number of bytes from

In this article, we will discuss different ways to replace a character in string at a particular index in C++. Table Of Contents Introduction Case 1: The index of the character to be replaced and the new character are given as input. Using std::string::replace() Using the [] operator Case 2: The character to be replaced

In this article, we will two different approaches to search and replace a string in a text file in C++. Table Of Contents Approach 1: Read whole file, and replace text Approach 2: Read file line by line, and modify in parallel Summary Approach 1: Read whole file, and replace text This program reads the

In this article, we will discuss different ways to slit a string into a vector in C++. Table Of Contents Method 1: Using a loop Method 2: Using std::stringstream Method 2: Using strtok() Method 1: Using a loop One way to split a string is to use a delimiter, such as a space or a

In this article, we will discuss different ways to split a string using delimiter in C++. Table Of Contents Method 1: Using a loop and string.find() Method 2: Using stringstream() Method 3: Using strtok() Summary Method 1: Using a loop and string.find() In C++, the std::string::find() function is a member function of the std::string class

In this artcile, we will discuss different ways to split a string into multiple substrings of equal lemnth in C++. Table Of Contents Introduction Method 1: Using substr() Method 2: Using iterators Summary Introduction There can be two variations for the given problem:1. The number of substrings is given and we need to calculate the

In this article, we will discuss how to print each character of a string in C++. Table Of Contents Method 1: Using a range based for loop Method 2: Using Iterator and While Loop Method 3: Using STL ALgorithm for_each() Method 4: By Overloading operator<< for string Method 5: Using index based for loop Summary

In this article, we will discuss different ways to check if a string is a number or not in C++. Basically, we will confirm that string contains only digits. Table Of Contents Problem description Method 1: Using Loop Method 2: Using STL Algorithm std::find_if() Method 3: Using STL Algorithm std::all_of() Method 4: Using strtol() function

In this article, we will discuss different ways to count occurrences of a given character in a string in C++. Table Of Contents Method 1: Using std::count() Method 2: Using std::count_if() Method 3: Using std::find() Summary Method 1: Using std::count() The first approach, that we will learn is the standard template library algorithm std::count() function.