【悟空云课堂】第八期:switch中缺少default导致的代码缺陷(CWE-478: Missing Default Case in Switch Statement) 什么是switch中缺少default而导致的代码缺陷? switch用在编程中,如C语言中它经常跟case一起使用,是一个判断选择逻辑结构。其功能就是控制流程流转。switch语句的语法如下(switch,case,break和default是关键...
C 语言编程中， default 关键字通常用于 switch 结构中，用于对结构中 case 语句未覆盖的情况进行兜底；并且，default 关键字只能在 switch 结构中使用。如果在 switch 结构外使用 default 关键字，那么编译器不会通过，会报错 error: 'default' statement not in switch statement。二、default 关键字的用法 在 C ...
05Switch中缺少default导致的漏洞样例: 用Wukong检测上述程序代码,则可以发现代码中存在着case语句中没有default语句的缺陷,如下图: switch中缺少default在CWE中被编号为CWE-478: Missing Default Case inSwitch Statement 更多的信息请参考CWE官网: http://cwe.mitre.org/data/definitions/478.html # 资讯 # 黑客 ...
For example, create a variable$favfoodand assign it with the valuepizza. Write aswitchstatement taking the variable$favfoodin the parenthesis. Inside the switch statement, write thecasestatement and provide the casemomoascase "momo":. Do not miss the colon after the value. Use theechostateme...
Understanding the Default Case of Switch Statements The default case in a switch statement is executed when all the other cases evaluate to false. In programming, switch statements are used for decision making. They check a variable or an expression against various values (cases) defined in the ...
5、Switch中缺少default导致的漏洞样例: 用悟空静态代码检测工具分析上述程序代码,则可以发现代码中存在着case语句中没有default 语句的缺陷,如下图: switch中缺少default在CWE中被编号为CWE-478: Missing Default Case inSwitch Statement
switch( c ) { case 'A': capa++; case 'a': lettera++; default : total++; } In the following example, abreakstatement follows each statement of theswitchbody. Thebreakstatement forces an exit from the statement body after one statement is executed. Ifiis equal to –1, onlynis increment...
Jun*_*ail 1 java switch-statement package com.learningjava.conditionals; public class SwitchExcercises { public static boolean isWeekDay(int dayNumber) { switch (dayNumber) { case 0: case 1: case 2: case 3: case 4: return true; case 5: case 6: return false; case default: return ...
Blank Default Case in C++ Switch Statement Aug 21, 2014 at 3:34am Tink (3) Thank you in advance for sharing your knowledge! I am working on someone else's C++ code (cannot share the code here for legal reasons), and they continue to use switch statements in a way that doesn't ...
You attempted to use thedefaultstatement more than once within a switch statement. The default case is always the last case statement in a switch statement (it is the fall-through case). To correct this error Remove any extradefaultcase statements from yourswitchstatement (use at mo...