... double-precision type was named
double in C++. The type that corresponds to single pre-
cision in C++ was called
float. C++ also has a third type for numbers with a fractional part, which
is called
long ... notation and is particularly handy for writing very large num-
bers and very small fractions. For instance, 3.67
x 10
17
, which is the same as
367000000000000000.0
is best exp...
... to Arthur Darison Ficke, October 24, 1930
Looping mechanisms in C++ are similar to those in other high-level languages. The
three C++ loop statements are the
while statement, the do-while statement, ...
while statement, the do-while statement, and the
for statement. The same terminology is used with C++ as with other languages. The
code that is repeated in a loop is called the loop bo...
... statement in the
main part of a program should be optional, practically speaking it is not. The C++ stan-
dard says that you can omit the
return 0 statement in the main part of the program,
but ... even though they have the same name. (In
particular, this is true even if one of the functions is the
main function.)
D
i
sp
l
ay 3.8 Local Variables
(
part 2 of 2
)
S
AMPLE
D
IALOGUE...
... ANSI/ISO C++ standard requires that a C++ compiler that claims compliance
with the standard treat any declaration in a
for loop initializer as if it were local to the
body of the loop. Earlier C++ ... << x << endl;
}
cout << x << endl;
}
■ There are two kinds of functions in C++: functions that return a value and void
functions.
■ A function should be defined...
... discusses partially filled arrays and gives a brief introduction to sorting and
searching of arrays. This section includes no new material about the C++ language, but
does include more practice with C++ ... 5.5
>
05_CH05.fm Page 198 Wednesday, August 13, 2003 12:51 PM
196 Arrays
Display 5.5 Partially Filled Array
(part 2 of 3)
23 fillArray(score, MAX_NUMBER_SCORES, numberUsed);
24 sh...
... August 13, 2003 12:54 PM
238 Structures and Classes
Display 6.3 Class with a Member Function
(part 2 of 2)
37 //Uses iostream:
38 void DayOfYear::output( )
39 {
40 switch (month)
41 {
42 case ... operator is often called a type
qualifier, because it specializes (“qualifies”) the function name to one particular type.
Look at the definition of the member function
DayOfYear::output given in Disp...
... most compilers. The C++ standard says that
what happens when you do this is “undefined.” That means the author of the compiler
Display 10.7 A Dynamically Allocated Array
(part 2 of 2)
37 //Uses ... p[i] << " ";
cout << endl;
Display 10.8 Returning a Pointer to an Array
(part 1 of 2)
1 #include <iostream>
2 using std::cout;
3 using std::endl;
4 int* doubler(...
... customary with partially filled arrays, the elements must be filled in order, going first
into position 0, then 1, then 2, and so forth.
An object of the class
PFArrayD can be used as a partially ...
FOR
P
ARTIALLY
F
ILLED
A
RRAYS
The class PFArrayD in Displays 10.10 and 10.11 is a class for a partially filled array of doubles.
5
As
shown in the demonstration program in Display 10.12,...