Looping through each character

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std::string supports iterators, and so you can use a ranged based loop to iterate through each character:

std::string str = "Hello World!";
for (auto c : str) {
    std::cout << c;
}

You can use a “traditional” for loop to loop through every character:

std::string str = "Hello World!";
for (std::size_t i = 0; i < str.length(); ++i) {
    std::cout << str[i];
}

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std::string:
* Looping through each character

Table Of Contents
8 Arrays
11 Loops
20 std::string
39 Streams
51 Unions
56 Lambdas
60 SFINAE
62 RAII
67 Sorting
84 RTTI
87 Scopes
104 Profiling
107 Recursion
117 Iteration
125 Alignment
134 Semaphore
136 Debugging
139 Mutexes
142 decltype