Strrev () [C language library function source code]

[C language library function source code]

[This program is compiled in Dev C ++ 4.9.9.2]

/*

Reverses the order of Characters in the string.

The terminating null character remains in place.

Reverses the order of all characters in a string (excluding null characters ).

Returns the string pointer pointing to the reverse order.

*/

Char * my_strrev (char * Str)

{

Char * Right = STR;

Char * Left = STR;

Char ch;

While (* right) Right ++;

Right --;

While (left <right)

{

Ch = * left;

* Left ++ = * right;

* Right -- = CH;

}

Return (STR );

}

/*

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*/

Char * my_strreverse (char * Ch)

{

Char tempch, * tch;

Int Len, I;

Tch = CH;

Len = strlen (CH );

For (I = 0; I <Len/2; I ++)

{

Tempch = * tch;

* Tch = * (TCH + len-2 * I-1 );

* (TCH + Len-2 * i-1) = tempch;

Tch ++;

}

Return ch;

}

Int main ()

{

Char STR [] = "ammana_babi ";

Puts (my_strrev (STR ));

Puts (my_strreverse (STR ));

System ("pause ");

Return 0;

}