How to parse comma delimited string?

[ChuckB]

Hi,
I can read a comma delimited file and load the data into a string one line at a time. So, I can get something like...

string s;
s = "12.3, 14.5, 16.7";

I can iterate through the string using s.substr and a 'for' loop...is there an equivalent to 'instr' command as in basic?

Regards,
ChuckB