编辑“︁C++ noexcept 说明符”︁（章节）

== 代码示例 ==

=== 基础示例 ===
<syntaxhighlight lang="cpp">
#include <iostream>
#include <stdexcept>

void may_throw() {
    throw std::runtime_error("Oops!");
}

void no_throw() noexcept {
    std::cout << "No exceptions here\n";
}

int main() {
    try {
        may_throw();
    } catch (...) {
        std::cout << "Caught exception\n";
    }

    no_throw(); // 安全调用

    return 0;
}
</syntaxhighlight>

输出：
<pre>
Caught exception
No exceptions here
</pre>

=== 条件noexcept示例 ===
<syntaxhighlight lang="cpp">
#include <type_traits>

template <typename T>
void swap(T& a, T& b) noexcept(std::is_nothrow_move_constructible<T>::value &&
                               std::is_nothrow_move_assignable<T>::value) {
    T temp = std::move(a);
    a = std::move(b);
    b = std::move(temp);
}
</syntaxhighlight>