Hi can someone please help me?

I have to place the following strings "pow", "sin","exp", "cos" in the array recieved as argument.

/*

* getop.c

*

* gets next token: operator or numeric operand

*/

#include <stdio.h>

#include <ctype.h>

#include "calc.h"

#define FCT '1' //$$ Returns a new symbolic constant

int getop(char s[])

{

int i, c;

while ((s[0] = c = getch()) == ' ' || c == '\t')

;

s[1] = '\0';

if (!isdigit(c) && c != '.')

return c; /* not a number */

********Modified part of code************

string p = "pow";

string e = "exp";

string s = "sin"; // Is this the correct way?

string c = "cos";

if( s[i] == p || s[i] ==e || s[i] == s || s[i] ==c)

return FCT;

*************************************

/* collect integer part in string s */

i = 0;

if (isdigit(c))

while (isdigit(s[++i] = c = getch()))

;

/* collect fractional part in string s */

if (c == '.')

while (isdigit(s[++i] = c = getch()))

;

s[i] = '\0';

if (c != EOF)

ungetch(c);

return NUMBER;

}