C String – strrev() function

Reversing a string in C can be done by strrev() function in a single line. This function simply reverses the given string in a program.

The strrev() function is defined in the header file string.h.

It takes a single argument that is the name of the string and is written as follows.

strrev(string_name);

C Program for strrev() function

#include <stdio.h>
#include <string.h>

int main() 
{
  char str[] = "simple2code";
  
  printf("Original String: %s", str);  
  printf("Reversed str String: %s", strrev(str));  
 
  return 0;
}

Output:

Original String: simple2code
Reversed str String: edoc2elpmis

Don’t be alarmed if it does not run on your compiler. It is just that some function like strrev(), which are only available in ANSI C (Turbo C/C++) and are not available in the standard C-GCC compiler.