cppreference.com 创建账户 页面 讨论 变换 查看 编辑 历史 std::trunc, std::truncf, std::trunclC++ 数值库 常用数学函数 在标头 <cmath> 定义 (1) float trunc ( float num ); double trunc ( double num ); long double trunc ( long double num
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Came across the [`std::trunc`](https://en.cppreference.com/w/cpp/numeric/math/trunc) method, as we had some code which was basically: `myClass.setIntValue(std::trunc(myFloat))`. This line lead to the warning `-Wfloat-conversion`. To prevent someone fixes this by `myClass.setIntVa...
我正在研究cppreference中的这些相关的标准函数族:std::round、std::floor、std::ceil和std::trunc。 为什么只有std::round为long和long long提供了特定的签名作为返回类型?我正在努力想出除了历史之外的其他原因,但std::round是最近才随C++11添加的。 c++ c++11 广告 大数据产品特惠专场 BI、WeData新客仅9.9元!