error C2440: '=' : cannot convert from 'const char *' to 'char *

[nihad]

Hi,
I want to do following , but it gives error C2440: '=' : cannot convert from 'const char *' to 'char *.

............
string str("VRML");
char *sss[];
sss[0]=str.c_str();
cout<<"SSS:"<<sss[0]<<endl;
............

Is there anybody who have experienced this problem?