Page 11 - PROGRAMMING IN C_Neat

3. Explain the string handling functions. ***

String Handling Functions:
1.strlen():
 Used to find the length of a string.
 General Form:

n = strlen(string);

 Example:
string = “Kandan”; Output:
n = strlen(string); n = 6

2.strcpy():
 Used to copy the content of one string into another string.
 General Form:

strcpy(string1, string2);

 Example:
string2 = “Kandan”; Output:
strcpy(string1, string2); string1 = Kandan

3.strcat():
 Used to join two strings.
 General Form:

strcat(string1, string2);

 Example:
string1 = “Senthil”; Output:
string2 = “Kumaran”; string1 = SenthilKumaran
strcat(string1, string2);

4.strcmp():
 Used to compare two strings.
 General Form:

n = strcmp(string1, string2);

string1 = string2  n = 0
string1 > string2  n = 1
string1 < string2  n = -1
 Example:
string1 = “Kandan” Output:
string2 = “Murugan” n = -1
n = strcmp(string1, string2);

5.strrev():
 Used to reverse a string.
 General Form:

string2 = strrev(string1);

 Example:
string1 = “Kandan”; Output:
string2 = strrev(string1); string2 = nadnaK