C String – strcat() function1 min read

strcat() function is used to combine two string together to form a single string in a program.

It concatenates two strings and the final result is returned to the first string. The strcat() function is defined in the header file string.h.

It takes two arguments, the name of the first string and the second string. These two strings are joined together and the first string stores the final result. And is written as follows:

strcat(first_string, second_string);

C Program for strcat() function

Output:

After concatenation: This is Simple2Code website.


C String – strncat function

It is the same as the above strcat() function but here the difference is that it takes the third argument for n number of characters to be concatenated from the second string to the first string in a program. Like strcat, the result will be stored in the first string.

It is written as follows:

strncat(first_string, second_string, n);

C Program for strncat() function

Output:

After concatenation: This is Simp


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