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Reverse a string
#include <string.h>
char* strrev( char* s1 );
- s1
- The string that you want to reverse.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The strrev() function replaces
the string s1 with a string whose characters are in the reverse
order.
The address of the string, s1.
#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
QNX 4
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
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