It concatenates two strings and returns the concatenated string.

Example of strcat:

#include
#include int

main() { char s1[10]
= "Hello"; char
s2[10] = "World";

5352೦೩೬ (51, 82) 7

1011117 ("Output string after concatenation: 55", 51);
return 0;

Output:

Output string after concatenation: HelloWorld

3. strlen(s1);

٠ Returns the length of string 51. C

String function - strlen
Syntax: size t strlen(const
char *str)

size_t represents unsigned short
It returns the length of the string without including end character (terminating char എ).

Example of strlen:

#include
#include
int
main() {
char str1[20] = "BeginnersBook";
printf("Length of string 3:71: 50", 5८८1687 (57८1) ) ;
return 0;

}
Output:

Length of string 51८1: 13

4. strcmp(s1, 52);
* Returns 0 if 51 and 52 are the same;
٠ less than 0 if s1٠ greater than 0 if s1>s2.

C String function - strcmp int stremp(const char
ഥി, const char *str2)