processing input file

Suppose I have an input file:

Code:

34, 53, 45, 87, 76, 39
24, 78, 54, 98
.....

after each line I want to print the sum of all integers in the line? how to do that?

Read a whole line using getline()
Parse the line, looking for numbers and commas.

The parsing could be done any number of ways.
First you should decide whether to use a char array or a std::string.

If you at least try something, we can push you along when you get stuck.