C Programming for the Absolute Beginner phần 6 ppt
C Programming for the Absolute Beginner phần 6 ppt
... use the indirection operator
(
*), which tells C that I want to access the contents of the memory location contained in the
pointer variable. Specifically, I increment the original variable contents ...
main()
function, that are used to build the
tic-tac-toe game. Table 6. 3 describes each function’s purpose.
TABLE 6. 3 FUNCTIONS USED IN THE TIC-TAC-TOE GAME
Function Name...
C Programming for the Absolute Beginner phần 1 ppt
... follows the backslash. In this case, the
next character is the character
n. Together, the backslash (\) and n characters make up an
escape sequence.
Escape Sequences
This particular escape sequence ... escape characters or escape sequences. The backslash
character (
\) is the escape character. When the printf() statement shown above is executed,
the program looks forward to...
C Programming for the Absolute Beginner phần 3 pptx
... occurred because after the appropriate
case
statement is matched to the
switch
variable, the
switch
structure continues processing each
case
statement thereafter.
72
C Programming for the ... 'a' )
Checking for a Range of Values
Checking for a range of values is a common programming practice for input validation. You
can use compound conditions and relati...
C Programming for the Absolute Beginner phần 7 pptx
...
C Programming for the Absolute Beginner, Second Edition
208
The character-handling library <ctype.h> provides many character manipulation functions
such as
tolower() and toupper(). These ... library function is the strcat() function,
which concatenates or glues one string to another.
To
concatenate
is to glue one or more pieces of data together or to connect one
or mor...
C Programming for the Absolute Beginner phần 8 ppt
... memory.
Specifically, this chapter covers the following topics:
• Memory concepts continued
•
sizeof
•
malloc()
•
calloc()
•
realloc()
MEMORY CONCEPTS CONTINUED
This chapter is dedicated to discussing ... powerful concept for dissecting chunks of memory.
CALLOC() AND REALLOC()
Another memory allocating tool is the C standard library
<stdlib.h>
function
calloc()
. Like
the...
C Programming for the Absolute Beginner phần 10 ppt
... 271–278
symbolic constants, 272–274
c type specifier, 255
calloc( ) function, 227, 237–241, 302
C Programming for the Absolute Beginner, Second Edition
3 06
Code Character
57 9
58 :
59 ;
60 <
61 =
62 ... 195
character data types, with printf( ) function,
35– 36
./ character sequence, 17
character strings, 234, 254
character variables, 30
characters, 30–31, 1 86
checkF...
C Programming for the Absolute Beginner phần 2 ppsx
... through the ASCII (American Standard Code for
Information Interchange) character set. For a listing of common ASCII character codes, see
Appendix D, “Common ASCII Character Codes.”
ASCII
ASCII
... known as character codes. For exam-
ple, the character code 90 represents the letter Z. Note that the letter Z is not the same as the
character code 122, which represents the le...
C Programming for the Absolute Beginner phần 4 pot
... balance
At least four occasions require you to access the customer’s balance. Writing code structures
every time you need to access someone’s balance doesn’t make sense, because you can write
C Programming ... correct.
Figure 4.11 depicts the preceding
for loop’s execution.
FIGURE 4.11
Illustrating the
for loop.
100
C Programming for the Absolute Beginner, Second Edit...
C Programming for the Absolute Beginner phần 5 potx
... operations. Consider the two following function
calls.
printReportHeader; //Incorrect function call
printReportHeader(); //Correct function call
The first function call will not cause a compile error ... execute the
function call to
printReportHeader. The second function call, however, contains
the empty parentheses and will successfully call
printReportHeader().
V
ARIABLE
S
COPE...
C Programming for the Absolute Beginner phần 9 pot
... preprocessor techniques and concepts such as
symbolic constants, macros, function headers, and definition files.
Specifically, this chapter covers the following topics:
• Introduction to the C preprocessor
• ... replaces
all occurrences of the constant name found in the source code with its definition, in this
case
7
. Remember, this is a preprocessor directive, so the process of...
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