c++ - comma separated stream into struct -

i have structure int , 2 strings. when reading in file comma seperated first 2 values , last value terminated newline. third argument empty however.

ex data: 7, john doe, 123-456-7891 123 fake st.

i want make program grab first number , put in int, find comma , put second number in struct's string etc.

first question should use class instead? have seen getline(stream, mystring, ','); arguments different data types can't throw them vector.

my code:

struct person{     int id;//dont care if unique      string name;     string extrainfo; };  int main(int argc, char* argv[]){     assert( argc ==2 && "invalid number of command line arguments");     ifstream inputfile (argv[1]);     assert( inputfile.is_open() && "unable open file"); } 

what best way of storing information , retrieving file comma separated first 2 , ends newline? want program ignore blank lines in file.

i'd read file line-by-line using normal getline(). then, put stringstream further parsing or use string's find() functions split text manually.

some more notes:

• i don't understand first question using class. if mean person, answer doesn't matter.
• using assert don't have control on wrong, argc. should used verify didn't make programming error. also, if #define ndebug, asserts gone, shouldn't part of program logic. throw std::runtime_error("failed open file") instead.
• you don't want double quotes in strings. also, might want "a,b" not split comma. make sure have tests assert required functionality.