... hold values. In this case, pointers become the only
access to that memory. In C, you could allocate memory with the library function malloc().
You still can do so in C+ +, but C+ + also has a better ... then continues printing characters until it runs into the null character (\0). In short, if
you give cout the address of a character, it prints everything from that character to the first
null character ... in the cout statement is
the address of the char element containing the character r. The cout object assumes that
the address of a char is the address of a string, so it prints the character at...
... functions
you use from the library (see Figure 1.4).
12 CPRIMER PLUS
FIGURE 1.4
Compiler and linker.
concrete .c
concrete.obj
concrete.exe
source code
Compiler
object code
library code
executable ... executable file, which appends the
.EXE exten-
sion to the original source code basename. For example, compiling and linking a source code
file called concrete .c produces a file called concrete.exe. ... 1.5
Preparing a C program
using Unix.
name .c
a.out
source code
enter
source code
Compiler
executable code
run program by
typing filename
a.out
Text Editor
What about the object code? The cc compiler creates...
... Windows compiler. You
start by selecting File, New Project. You are then given a choice of project types. For
CodeWarrior, choose MacOS :C/ C++:ANSI C+ + Console in older versions, or
MacOS :C/ C++:Standard ... Console:Std C+ + Console in mid-vintage versions, or MacOS C+ +
Stationery:Mac OS Carbon:Standard Console :C+ + Console Carbon. (You can make other valid
choices; for example, you might opt for Classic ... Classic instead of Carbon or C+ + Console Carbon
Altivec instead of plain C+ + Console Carbon.)
CodeWarrior supplies a small source code file as part of the initial project. You can try compil-
ing...
... For example, compiling and linking a source code file called
concrete .c produces a file called concrete.exe. Some compilers provide an option to create an
executable named concrete.com instead. ... numbers; each character has a numeric
code. The instructions that a computer loads into its registers are stored as numbers; each
instruction in the instruction set has a numeric code. Second, computer ... contains all the machine code that the
computer needs to get the job done.
The Unix C compiler is called cc. To compile the inform .c program, you need to type the
following:
cc inform.c...
... C+ +, a class is a specification describing such a new data form, and an object is a par-
ticular data structure constructed according to that plan. For example, a class could
describe the general ... including New C Primer
Plus, which received the Computer Press Association’s 1990 Best How-to Computer
Book Award, and C+ + Primer Plus, nominated for the Computer Press Association’s Best
How-to Computer ... C+ + adds object-oriented concepts to the C language
n
How C+ + adds generic programming concepts to the C language
n
Programming language standards
n
The mechanics of creating a program
We l come...
... you'll meet the cctype library of functions for evaluating character relations, such as testing
whether a character is a digit or a nonprinting character.
Chapter 7: Functions ?C+ +'s Programming ... Fourth Edition of C+ + Primer
Plus reflects the ISO/ANSI standard and describes this matured version of C+ +.
C+ + PrimerPlus integrates discussing the basic C language with presenting C+ + features, ... base class code. This chapter
discusses public inheritance, which models is-a relationships, meaning that a derived object is a
special case of a base object. For example, a physicist is a special...
... between
C and C+ + programs.
Table 1.1. Source Code Extensions
C+ + Implementation Source Code Extension
UNIX AT&T C, cc, cxx, c
GNU C+ + C, cc, cxx, cpp
Symantec cpp, cp
Borland C+ +
cpp
Watcom
cpp
Microsoft ... implemented C+ + with a C+ +-to -C compiler program instead of
developing a direct C+ +-to-object code compiler. This program, called cfront (for C
front end), translated C+ + source code to C source code, ... the CC command to compile your program. The name is in uppercase letters to
distinguish it from the standard UNIX C compiler cc. The CC compiler is a
command-line compiler, meaning you type compilation...
... for a while.
C- Style Comments
C+ + also recognizes C comments, which are enclosed
between /* and */ symbols:
#include <iostream> /* a C- style comment */
Because the C- style comment is terminated ... general, a C+ + function is activated, or called, by another function, and the function
heading describes the interface between a function and the function that calls it. The part
preceding the function ... begin with a simple C+ + program that displays a message. Listing 2.1 uses the C+ +
cout (pronounced cee-out) facility to produce character output. The source code includes
several comments to the...
... the C+ + class corresponds to what some languages term an object type, and the C+ +
object corresponds to an object instance or instance variable.
Now get a little more specific. Recall this declaration ... number; that is, a 3
character and an 8 character. The program internally stores the code for the 3 character
and the 8 character. To print the string, cout simply prints each character in the string. ... function call, the invoked function is termed the called function, and the
function containing the function call is termed the calling function. (See Figure 2.6.)
Figure 2.6. Calling a function.
The...
... object is an entity created according to a class prescription, just as a simple
variable is an entity created according to a data type description.
C+ + provides two predefined objects (cin and cout) ... U.S., the basic character sets usually are the ASCII
and EBCDIC sets, each of which can be accommodated by 8 bits, so
the C+ + byte typically is 8 bits on systems using these character sets.
However, ... own symbolic constants, too. (See
Listing 3.2.) However, the #define directive is a C relic. C+ + has a
better way for creating symbolic constants (the const keyword,
This document was created...
... to create a character constant and don't use single quotes when
including it as part of a string.
Table 3.2. C+ + Escape Sequence Codes
Character Name ASCII Symbol C+ + Code ASCII Decimal Code ... awkward conversion functions to convert
characters to ASCII and back.
Finally, the program uses the cout.put() function to display both c and a character constant.
A Member Function: cout.put()
Just ... symbols, such as { and =, used in the C language, and a scattering of other
characters, such as newline and space. Then there is a basic execution character set (characters that
can be produced by...