String library: “String” is a predefined data type in a programing language. Strings are objects which are used to represent the sequence of characters. “String” is a single dimensional array and it is terminated using null character. String operations: The various string operation in the programming languages are, strcpy(x, y); Copy the string “y” to “x”. strcat(x, y); Concatenate “y” at the end of “x”. strlen(x); Returns the length of “x”. strcmp(x, y); Returns 0 when “x” and “y” are same, returns less than 0 when “x<y”, returns greater than 0 when “x>y”. strchr(x, ch); Returns pointer to first event of character “ch” in string “x”. strstr(x, y); Returns pointer to first event of string “y” in string “x”.

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Chapter 2.7, Problem 2.16CP

Program Plan Intro

String library:

“String” is a predefined data type in a programing language.

Strings are objects which are used to represent the sequence of characters.

“String” is a single dimensional array and it is terminated using null character.

String operations:

The various string operation in the programming languages are,

strcpy(x, y);

Copy the string “y” to “x”.

strcat(x, y);

Concatenate “y” at the end of “x”.

strlen(x);

Returns the length of “x”.

strcmp(x, y);

Returns 0 when “x” and “y” are same, returns less than 0 when “x<y”, returns greater than 0 when “x>y”.

strchr(x, ch);

Returns pointer to first event of character “ch” in string “x”.

strstr(x, y);

Returns pointer to first event of string “y” in string “x”.

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