Why Does \'Jump to Case Label\' Error Occur in a Switch Statement?

Error Resolution: "Jump to Case Label" in Switch Statement

In the provided code snippet:

</p>
<h1 id="include-lt-iostream-gt">include <iostream></h1>
<p>int main() <br>{</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">int choice;
std::cin >> choice;
switch(choice)
{
  case 1:
    int i=0;
    break;
  case 2: // error here 
}

Copy after login

}

the compilation error occurs because variables declared in one case label are accessible in subsequent case labels unless explicitly enclosed in a block.

In this scenario, the variable i declared in case 1 remains in scope for case 2, but its initialization code is not executed. Accessing an uninitialized variable can lead to unexpected behavior or errors.

To resolve this issue, enclose each case label within its own block:

<br> switch(choice)</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">{
  case 1:
    {
        int i=0;
        break;
    }
  case 2:
    {
        // Code for case 2
        break;
    }
}

Copy after login