Syntax
if (score >= 50) { /* pass */ }
for (const auto& item : items) { /* use item */ }Examples
Classifying scores
A small, runnable example of this syntax.
#include <iostream>
#include <vector>
int main() {
std::vector<int> scores{72, 49, 90};
for (int score : scores) {
std::cout << (score >= 50 ? "pass" : "retry") << "\n";
}
}Best practices
- Use braces even for one-line branches and loops; they prevent errors when the body changes later.
- Keep examples small while learning, then combine the idea with a real project.
At a glance
- Purpose
- Systems and general-purpose software
- File extension
- .cpp · .hpp
- Runs in
- Compiled native applications
- Usually used with
- Compiler and standard library