C Programming for the Absolute Beginner phần 2 ppsx
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 l...
C Programming for the Absolute Beginner phần 1 ppt
... Structures 21 4
Unions 21 7
Type Casting 21 9
Chapter Program–Card Shuffle 22 1
Summary 22 5
Challenges 22 6
Dynamic Memory Allocation 22 7
Chapter 10
Memory Concepts Continued 22 7
Stack and Heap 22 8
sizeof ... Data 25 9
goto and Error Handling 26 2
Chapter Program The Phone Book Program 26 5
Summary 26 8
Challenges 27 0
The C Preprocessor 27 1
Chapter 12
Introduction t...
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 ... Programming for the Absolute Beginner, Second Edition
To correct this, use the
srand()
function, which produces a true randomization of numbers.
More specifically, the...
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 ... Programming for the Absolute Beginner, Second Edition
1 12
common structured programming techniques and concepts. After reading this section, you
will be ready to buil...
C Programming for the Absolute Beginner phần 5 potx
... function
calls.
printReportHeader; //Incorrect function call
printReportHeader(); //Correct function call
The first function call will not cause a compile error but will fail to execute the
function ... concept.
FIGURE 5 .2
Demonstrating
the black box
concept.
Consider the two black box drawings in Figure 5 .2. Each black box describes one component;
in this case the components are...
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 ... number of increments. For exam-
ple, I can encrypt the following message by shifting each character by two letters.
Meet me at seven
C Programming for the Absolute B...
C Programming for the Absolute Beginner phần 7 pptx
...
C Programming for the Absolute Beginner, Second Edition
20 8
The character-handling library <ctype.h> provides many character manipulation functions
such as
tolower() and toupper(). These ... number.
The
atoi() function converts a string to an integer.
• Attempting numeric arithmetic on strings can produce unexpected results.
C Programming for the Absolute B...
C Programming for the Absolute Beginner phần 8 ppt
... 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
malloc()
function, ... such as RAM and virtual memory.
Specifically, this chapter covers the following topics:
• Memory concepts continued
•
sizeof
•
malloc()
•
calloc()
•
realloc()
MEMORY CONCEPTS CONTIN...
C Programming for the Absolute Beginner phần 9 pot
... == op1[x] + op2[x] )
result[x] = &apos ;c& apos;;
else
24 2
C Programming for the Absolute Beginner, Second Edition
12
C HAP TE R
THE C PREPROCESSOR
nderstanding the C preprocessor is an ... 30, 22 2 -22 -22 22, Political Science, 3.5
Sheila Vine, 29 , 555-55-5555, Computer Science, 4.0
Spencer Vine, 19, 777-77-7777, Law, 3.8
Olivia Vine, 18, 888-88-8888, Medi...
C Programming for the Absolute Beginner phần 10 ppt
... structures, 20 3
arrays of, 20 8 21 0
Card Shuffle program, 22 1 22 5
to functions, 21 0 21 7
passing arrays of structures, 21 4 21 7
by reference, 21 2 21 4
by value, 21 0 21 2
overview, 22 5 22 6
struct keyword, 20 4 20 6
type ... 1 02 103
bsearch( ) function, 3 02
bugs, 17
bytes, 24 8
c
C compiler (gcc), 21
C Library functions, 29 9–303
C library header files, 27 2
-c...
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