problem comparing character

Code:

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char *compareChar(char *sN, char *sC, char *rC){
        int i,j;
        int destination_len;

                destination_len = strlen(rC);

    for(i=0;i<destination_len;i++)
  {       
        if(*rC == "o")
        {
                printf("%c \n",*rC);

        }
      rC++;
  }
}

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for the above function, i pass in "hello world" to the char *rC. I would like to know why does this warning occurs and also how can i solve this problem ??.

"warning C4047: '==' : 'int ' differs in levels of indirection from 'char [2]"

try rc[x] or &rc

edit: oh and "" means string if you want to compare characters use ' '

Code:

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if(*rC == "o")

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The above line should probably be

Code:

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if(*rC == 'o')

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And use better formatting. Comments would help too