what the meaning of * in C++

[chiwing]

//--------------------------
struct RateInfo { unsigned int ctm; double open; };

struct MqlStr { int len; char * string; };
# define happy __declspec (dllexport)

happy void _stdcall GetSMAArray( RateInfo* Rates, int MaximumRecords, int Period, double Result[] )
//--------------------------

at above code :
char * string;
RateInfo* Rates,

i want to ask what the * means/represent ?

thanks

[z05DSL3A]

http://www.cplusplus.com/doc/tutorial/pointers/

[chiwing]

big thanks to GREY WOLF
it really help ~~