View Compilation Error

0_0_25940615_16524.cpp: In member function 'void Suffix_Array::ins(char*, int)':
0_0_25940615_16524.cpp:28:35: error: cannot convert 'char*' to 'int*' in assignment
     void ins(char *str,int len) {s=str;n=len+1;}
                                   ^