C++ keyword: for - cppreference.com (original) (raw)
[edit] Usage
- for loop: as the declaration of the loop
| range-based for loop: as the declaration of the loop | (since C++11) |
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[edit] Example
#include int main() noexcept { // The following 'for' loop statement: // 1. (init-statement) Declares an integer named 'i' and initializes it with value '0'. // 2. (condition) Checks if i is less than 3 and if not, ends the loop execution. // 3. (statement) Writes out a current value of the integer 'i' to the stdout. // 4. (expression) Pre-increments the integer 'i' (increases its value by 1). // 5. Returns to the point 2 (condition). // init-statement: int i{0}; // condition: i < 3 for (int i{0}; i < 3; ++i) // expression: ++i std::cout << i; // statement: std::cout << i; }
Output: