strrev()

Reverse a string

Synopsis:

#include <string.h>

char* strrev( char* s1 );

Arguments:

s1: The string that you want to reverse.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The strrev() function replaces the string s1 with a string whose characters are in the reverse order.

Returns:

The address of the string, s1.

Examples:

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

char source[] = { "A sample STRING" };

int main( void )
  {
    printf( "%s\n", source );
    printf( "%s\n", strrev( source ) );
    printf( "%s\n", strrev( source ) );
    return EXIT_SUCCESS;
  }

produces the output:

A sample STRING
GNIRTS elpmas A
A sample STRING

Classification:

QNX Neutrino

Safety:
Cancellation point	No
Interrupt handler	Yes
Signal handler	Yes
Thread	Yes