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Presentation transcript:

Topics discussed in this section: 11-5 String Manipulation Functions Because a string is not a standard type, we cannot use it directly with most C operators. Fortunately, C provides a set of functions to manipulates strings. Topics discussed in this section: String Length and String Copy String Compare and String Concatenate Character in String Search for a Substring and Search for Character in Set String Span and String Token String to Number Computer Science: A Structured Programming Approach Using C

PROGRAM 11-11 Add Left Margin Computer Science: A Structured Programming Approach Using C

PROGRAM 11-11 Add Left Margin Computer Science: A Structured Programming Approach Using C

FIGURE 11-14 String Copy Computer Science: A Structured Programming Approach Using C

FIGURE 11-15 String-number Copy Computer Science: A Structured Programming Approach Using C

Always use strncpy to copy one string to another. Note Always use strncpy to copy one string to another. Computer Science: A Structured Programming Approach Using C

Build Name Array in Heap PROGRAM 11-12 Build Name Array in Heap Computer Science: A Structured Programming Approach Using C

Build Name Array in Heap PROGRAM 11-12 Build Name Array in Heap Computer Science: A Structured Programming Approach Using C

Build Name Array in Heap PROGRAM 11-12 Build Name Array in Heap Computer Science: A Structured Programming Approach Using C

FIGURE 11-16 Structure for Names Array Computer Science: A Structured Programming Approach Using C

FIGURE 11-17 String Compares Computer Science: A Structured Programming Approach Using C

Results for String Compare Table 11-1 Results for String Compare Computer Science: A Structured Programming Approach Using C

FIGURE 11-18 String Concatenation Computer Science: A Structured Programming Approach Using C

FIGURE 11-19 Character in String (strchr) Computer Science: A Structured Programming Approach Using C

FIGURE 11-20 String in String Computer Science: A Structured Programming Approach Using C

FIGURE 11-21 String Span Computer Science: A Structured Programming Approach Using C

FIGURE 11-22 Streams Computer Science: A Structured Programming Approach Using C

Demonstrate String to Long PROGRAM 11-13 Demonstrate String to Long Computer Science: A Structured Programming Approach Using C

Demonstrate String to Long PROGRAM 11-13 Demonstrate String to Long Computer Science: A Structured Programming Approach Using C

Demonstrate String to Long PROGRAM 11-13 Demonstrate String to Long Computer Science: A Structured Programming Approach Using C

String-to-Number Functions Table 11-2 String-to-Number Functions Computer Science: A Structured Programming Approach Using C

FIGURE 11-23 Parsing with String Token Computer Science: A Structured Programming Approach Using C

Parsing a String with String Token PROGRAM 11-14 Parsing a String with String Token Computer Science: A Structured Programming Approach Using C

Parsing a String with String Token PROGRAM 11-14 Parsing a String with String Token Computer Science: A Structured Programming Approach Using C

Compare Packed String Function PROGRAM 11-15 Compare Packed String Function Computer Science: A Structured Programming Approach Using C

Compare Packed String Function PROGRAM 11-15 Compare Packed String Function Computer Science: A Structured Programming Approach Using C

Compare Packed String Function PROGRAM 11-15 Compare Packed String Function Computer Science: A Structured Programming Approach Using C

Compare Packed String Function PROGRAM 11-15 Compare Packed String Function Computer Science: A Structured Programming Approach Using C

Compare Packed String Function PROGRAM 11-15 Compare Packed String Function Computer Science: A Structured Programming Approach Using C