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tiny::optional - Replacement for std::optional that does not waste memory unnecessarily. [BSL-1.0] Tulip Indicators - A C library of over 100 financial technical analysis indicators. [LGPL] ub-canaries - A collection of C/C++ programs that try to get compilers to exploit undefined behavior. ...
关于Optional orElseGet的一些注意点 前提: 现在有A B C三个类, 代码如下 : A.java package com.ahut.essearch.Optional; /** * desc : * create_user : cheng * create_date : 2018/9/14 14:30 */ public class A private B b; public B getB() {...
GetSize CopyFrom data size Clear operator= Operator类 GetName GetImpl GetOutput SetInput SetDynamicInput UpdateInputDesc SetAttr SetGraphBuilder Operator注册类 使用说明 REG_OP ATTR REQUIRED_ATTR INPUT OPTIONAL_INPUT OPTIONAL_OUTPUT DYNAMIC_INPUT OUTPUT DYNAMIC_OUTPUT...
GetSize CopyFrom data size Clear operator= Operator类 GetName GetImpl GetOutput SetInput SetDynamicInput UpdateInputDesc SetAttr SetGraphBuilder Operator注册类 使用说明 REG_OP ATTR REQUIRED_ATTR INPUT OPTIONAL_INPUT OPTIONAL_OUTPUT DYNAMIC_INPUT OUTPUT DYNAMIC_OUTPUT...
Java 8 引入的Optional类可以用于表示可能为null的值。这有助于避免直接使用null。 例如, import java.util.Optional;publicclassMain{publicstaticvoidmain(String[] args){// 获取一个可能为 null 的字符串Optional<String> optionalString = Optional.ofNullable(getStringValue());// 检查 Optional 对象是否有值...
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if(optionalValue.isPresent()){// 值存在}else{// 值不存在} 1. 2. 3. 4. 5. 如果值存在,我们将执行相应的操作;如果值不存在,我们将执行相应的操作。 步骤3:如果值存在,执行相应的操作 如果Optional对象中的值存在,我们可以使用get()方法来获取该值,并进行相应的操作。代码如下: ...