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C++ keyword: return

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Uso

  • return sentencia: como la declaración de la sentencia

Ejemplo

#include <cstdlib>
#include <iostream>
[[nodiscard]] constexpr auto clamp(int value, int min, int max) noexcept
{
    if (value <= min)
        return min;
    else if (max <= value)
        return max;
    return value;
    // no se ejecutará después de la sentencia 'return'
    std::exit(value);
}
int main() noexcept
{
    std::cout << clamp(1, 2, 4);
    std::cout << clamp(3, 2, 4);
    std::cout << clamp(5, 2, 4);
    return 0; // el valor '0' en main() indica éxito
}

Salida:

234

Véase también

(desde C++17)
(desde C++23)
(desde C++20)