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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45

... 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...

Ngày tải lên: 05/08/2014, 09:45