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‘break’ statement when using curly braces in switch-case
While merging a package I came across this statement
switch (a)
{
case 1:
{
string str = "a is 1";
cout << str << endl;
}
break;
case 2: ...
...
}
my question is does it matter if I place the break inside or outside the scope in case 1? here they place outside. I tried this and didn't see any difference. It makes sense to me that there is no difference but the guy with the PHD from my team said he remembers that there might be a difference but he can't remember what it is..
363
You can use the break statement to end processing of a particular labeled statement within the switch statement. It branches to the end of the switch statement. Without break , the program continues to the next labeled statement, executing the statements until a break or the end of the statement is reached.
In a switch statement, the break statement causes the program to execute the next statement outside the switch statement. Without a break statement, every statement from the matched case label to the end of the switch statement, including the default clause, is executed.
One option is to set up a boolean value and if the default case is reached set it to true to repeat. bool repeat; do { repeat = false; //switch statement switch { default: repeat = true; } while(repeat); You could appropriately use repeat to know which question you would like to repeat as well. Save this answer.
In computer programming languages, a switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution via search and map.
There is no difference whether you put the break inside or outside the scope.
168
A break reached inside a switchblock causes the next statment outside this switch block to execute. Therefore, it does not matter where you place the break, inside or outside the scope.
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