Teach Yourself Borland C++ in 14 Days - portal

▲
default:
dflt_statements;
break;
}
Wading In Deeper
The switch statement offers a way to execute different blocks of code depending on various
values of an expression (expr). The block of code represented by statements_1 is executed
when expr is equal to value_1, the block of code represented by statements_2 when expr is
equal to value_2, and so on through the block of code represented by statements_n when
expr is equal to value_n. When expr is not equal to any of value_1 through value_n, the block
of code at dflt_statements is executed. The break statements are optional.
Learning About Scope
The term scope refers to the visibility of variables within different parts of your program. Most
variables have local scope. This means that the variable is visible only within the code block
in which it is declared. Take a look at the program in Listing 2.3.
NEW TERM
Listing 2.3. SCOPE.CPP.
The term scope refers to the visibility of variables in different parts of your program.
1: #include
2: #include
3: #pragma hdrstop
4: int x = 20;
5: void CountLoops(int);
6: int main(int, char**)
7: {
8: int x = 40;
9: int i = 0;
10: cout